Merge "Include extra_soong_config_vars.mk to add extra soong config variables." into main am: d76caefd5a am: 1aa29d06c3

Original change: https://android-review.googlesource.com/c/platform/build/+/3401359

Change-Id: I8c28e82df8398d39693ec5ba08cd6d4bfe20d531
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/core/android_soong_config_vars.mk b/core/android_soong_config_vars.mk
index 86048f3..2d5bbd5 100644
--- a/core/android_soong_config_vars.mk
+++ b/core/android_soong_config_vars.mk
@@ -308,3 +308,7 @@
 
 # Variables for controlling android.hardware.composer.hwc3-service.pixel
 $(call soong_config_set,google_graphics,board_hwc_version,$(BOARD_HWC_VERSION))
+
+# Variables for extra branches
+# TODO(b/383238397): Use bootstrap_go_package to enable extra flags.
+-include vendor/google/build/extra_soong_config_vars.mk