HV: introduce scenario Kconfig for sharing mode

Previously the vm_configs[] is defined separately for sharing mode and
partition mode, but the concept of hypervisor mode will be removed. Instead
we will introduce scenario Kconfig for hypervisor to load different vm
configurations.

SDC(Software Defined Cockpit) is a typical scenario that ACRN supported
so we introduce this scenario for previously sharing mode and move its
configurations to scenarios/sdc folder. The configuration could be used
for all boards reference.

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

hypervisor/Makefile

@@ -39,6 +39,11 @@ include $(BASEDIR)/../scripts/deps.mk
 
 include scripts/kconfig/kconfig.mk
 
+#initialize scenarios name
+ifeq ($(CONFIG_SDC),y)
+SCENARIO_NAME := sdc
+endif
+
 LD_IN_TOOL = scripts/genld.sh
 BASH = $(shell which bash)
 
@@ -110,6 +115,7 @@ INCLUDE_PATH += bsp/include
 INCLUDE_PATH += boot/include
 INCLUDE_PATH += $(HV_OBJDIR)/include
 INCLUDE_PATH += arch/x86/configs/$(CONFIG_BOARD)
+INCLUDE_PATH += scenarios/$(SCENARIO_NAME)
 
 CC ?= gcc
 AS ?= as
@@ -140,6 +146,8 @@ C_SRCS += arch/x86/configs/vm_config.c
 C_SRCS += arch/x86/configs/$(CONFIG_BOARD)/ve820.c
 ifeq ($(CONFIG_PARTITION_MODE),y)
 C_SRCS += arch/x86/configs/$(CONFIG_BOARD)/pt_dev.c
+else
+C_SRCS += scenarios/$(SCENARIO_NAME)/pt_dev.c
 endif
 
 C_SRCS += arch/x86/configs/$(CONFIG_BOARD)/board.c