HV: Add Partitioning mode option for ACRN

Adding Kconfig option to choose and compile partitioning mode for ACRN.
Current implementation does not allow ACRN to support sharing mode
and partitioning mode out of a single binary.

Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>

hypervisor/arch/x86/Kconfig

@@ -11,6 +11,18 @@ config PLATFORM_SBL
 
 endchoice
 
+choice
+	prompt "Hypervisor mode"
+	default SHARING_MODE
+
+config SHARING_MODE
+	bool "Sharing mode"
+
+config PARTITION_MODE
+	bool "Partition mode"
+	depends on PLATFORM_SBL
+endchoice
+
 config PLATFORM
 	string
 	default "uefi" if PLATFORM_UEFI