sm8450-common: Set display board flags

Change-Id: I1f78b0dadb14452f2a0c5152661813580b105064

BoardConfigCommon.mk

@@ -60,6 +60,16 @@ $(call soong_config_set, ufsbsg, ufsframework, bsg)
 TARGET_BOOTLOADER_BOARD_NAME := taro
 TARGET_NO_BOOTLOADER := true
 
+# Display
+TARGET_FORCE_HWC_FOR_VIRTUAL_DISPLAYS := true
+TARGET_GRALLOC_HANDLE_HAS_CUSTOM_CONTENT_MD_RESERVED_SIZE := false
+TARGET_GRALLOC_HANDLE_HAS_RESERVED_SIZE := false
+TARGET_USES_DISPLAY_RENDER_INTENTS := true
+TARGET_USES_GRALLOC4 := true
+TARGET_USES_HWC2 := true
+MAX_VIRTUAL_DISPLAY_DIMENSION := 4096
+NUM_FRAMEBUFFER_SURFACE_BUFFERS := 3
+
 # Filesystem
 TARGET_FS_CONFIG_GEN := $(COMMON_PATH)/configs/config.fs