efi: payload: x86: enable the possibility to efi stub bootm for x86.

this permits to select one of efi stub bootm or efi handover protocol
tested on dell latitude and qemu.

Signed-off-by: Chali Anis <chalianis1@gmail.com>

Author: anischali

efi/payload/Kconfig

@@ -1,7 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
 config EFI_HANDOVER_PROTOCOL
+	bool "EFI Handover protocol"
 	def_bool X86
 
 config EFI_PAYLOAD_BOOTM
-	def_bool !EFI_HANDOVER_PROTOCOL
+	bool "EFI bootm protocol"
+	depends on !EFI_HANDOVER_PROTOCOL
+	select BOOTM_FITIMAGE