OvmfPkg: update -D E1000_ENABLE from Intel PROEFI v.07 to BootUtil v.22

Jiaxin reports that the OvmfPkg/README instructions for downloading the
Intel PROEFI drivers, and the filenames in OvmfPkg/OvmfPkg*.fdf for
incorporating the same in the OVMF binaries, are no longer up to date; the
download link has stopped working.

Additionally, the IA32 driver binary is no more distributed by Intel.

Update OvmfPkg/README with new download instructions, and adapt the OVMF
FDF files.

With this driver in use for QEMU's e1000 NIC, the DH shell command prints,
as Controller Name, "Intel(R) PRO/1000 MT Network Connection". I
successfully tested DHCP and ping from the UEFI shell.

Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Reported-by: Jiaxin Wu <jiaxin.wu@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=613
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Wu Jiaxin <jiaxin.wu@intel.com>
Acked-by: Jordan Justen <jordan.l.justen@intel.com>

OvmfPkg/OvmfPkgIa32.fdf

@@ -294,11 +294,6 @@ INF MdeModulePkg/Logo/LogoDxe.inf
 #
 # Network modules
 #
-!if $(E1000_ENABLE)
-  FILE DRIVER = 5D695E11-9B3F-4b83-B25F-4A8D5D69BE07 {
-    SECTION PE32 = Intel3.5/EFI32/E3507E2.EFI
-  }
-!endif
   INF  MdeModulePkg/Universal/Network/SnpDxe/SnpDxe.inf
   INF  MdeModulePkg/Universal/Network/DpcDxe/DpcDxe.inf
   INF  MdeModulePkg/Universal/Network/MnpDxe/MnpDxe.inf

OvmfPkg/OvmfPkgIa32X64.fdf

@@ -296,7 +296,7 @@ INF MdeModulePkg/Logo/LogoDxe.inf
 #
 !if $(E1000_ENABLE)
   FILE DRIVER = 5D695E11-9B3F-4b83-B25F-4A8D5D69BE07 {
-    SECTION PE32 = Intel3.5/EFIX64/E3507X2.EFI
+    SECTION PE32 = Intel3.5/EFIX64/E3522X2.EFI
   }
 !endif
   INF  MdeModulePkg/Universal/Network/SnpDxe/SnpDxe.inf

OvmfPkg/OvmfPkgX64.fdf

@@ -296,7 +296,7 @@ INF MdeModulePkg/Logo/LogoDxe.inf
 #
 !if $(E1000_ENABLE)
   FILE DRIVER = 5D695E11-9B3F-4b83-B25F-4A8D5D69BE07 {
-    SECTION PE32 = Intel3.5/EFIX64/E3507X2.EFI
+    SECTION PE32 = Intel3.5/EFIX64/E3522X2.EFI
   }
 !endif
   INF  MdeModulePkg/Universal/Network/SnpDxe/SnpDxe.inf

OvmfPkg/README

@@ -224,24 +224,35 @@ longer.)
   basic virtio-net driver, located in OvmfPkg/VirtioNetDxe.
 
 * Also independently of the iPXE NIC drivers, Intel's proprietary E1000 NIC
-  driver (PROEFI) can be embedded in the OVMF image at build time:
-
-  - Download UEFI drivers for the e1000 NIC
-    - http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=17515&lang=eng
-    - Install the drivers into a directory called Intel3.5 in your WORKSPACE.
+  driver (from the BootUtil distribution) can be embedded in the OVMF image at
+  build time:
+
+  - Download BootUtil:
+    - Navigate to
+      https://downloadcenter.intel.com/download/19186/Ethernet-Intel-Ethernet-Connections-Boot-Utility-Preboot-Images-and-EFI-Drivers
+    - Click the download link for "PREBOOT.EXE".
+    - Accept the Intel Software License Agreement that appears.
+    - Unzip "PREBOOT.EXE" into a separate directory (this works with the
+      "unzip" utility on platforms different from Windows as well).
+    - Copy the "APPS/EFI/EFIx64/E3522X2.EFI" driver binary to
+      "Intel3.5/EFIX64/E3522X2.EFI" in your WORKSPACE.
+    - Intel have stopped distributing an IA32 driver binary (which used to
+      match the filename pattern "E35??E2.EFI"), thus this method will only
+      work for the IA32X64 and X64 builds of OVMF.
 
   - Include the driver in OVMF during the build:
-    - Add "-D E1000_ENABLE" to your build command,
+    - Add "-D E1000_ENABLE" to your build command (only when building
+      "OvmfPkg/OvmfPkgIa32X64.dsc" or "OvmfPkg/OvmfPkgX64.dsc").
     - For example: "build -D E1000_ENABLE".
 
 * When a matching iPXE driver is configured for a NIC as described above, it
   takes priority over other drivers that could possibly drive the card too:
 
-                 | e1000  ne2k_pci  pcnet  rtl8139  virtio-net-pci
-    -------------+------------------------------------------------
-    iPXE         |   x       x        x       x           x
-    VirtioNetDxe |                                        x
-    Intel PROEFI |   x
+                         | e1000  ne2k_pci  pcnet  rtl8139  virtio-net-pci
+    ---------------------+------------------------------------------------
+    iPXE                 |   x       x        x       x           x
+    VirtioNetDxe         |                                        x
+    Intel BootUtil (X64) |   x
 
 === OVMF Flash Layout ===