feat: add nitro enclave support in kernel

This updates the kernel configuration for amd64 to include support for
communicating with Nitro Enclaves when the kernel is used in AWS.

Signed-off-by: Lance R. Vick <lance@lrvick.net>
Signed-off-by: Noel Georgi <git@frezbo.dev>

kernel/build/config-amd64

@@ -4483,7 +4483,9 @@ CONFIG_DCA=y
 # CONFIG_UIO is not set
 # CONFIG_VFIO is not set
 CONFIG_IRQ_BYPASS_MANAGER=y
-# CONFIG_VIRT_DRIVERS is not set
+CONFIG_VIRT_DRIVERS=y
+# CONFIG_VBOXGUEST is not set
+CONFIG_NITRO_ENCLAVES=y
 CONFIG_VIRTIO=y
 CONFIG_VIRTIO_PCI_LIB=y
 CONFIG_VIRTIO_MENU=y