Also set build display id in etc/local.prop

Change-Id: I1e11b0a7b432e6771ec8bf42c58e8c970039624d
diff --git a/base.mk b/base.mk
index b7b8cf3..1dfa5ec 100644
--- a/base.mk
+++ b/base.mk
@@ -24,6 +24,7 @@
 	ro.build.version.all_codenames=$(PLATFORM_VERSION_ALL_CODENAMES) \
 	ro.build.version.release=$(PLATFORM_VERSION) \
 	ro.build.version.security_patch=$(PLATFORM_SECURITY_PATCH) \
+	ro.build.display.id=$(BUILD_DISPLAY_ID) \
 	ro.adb.secure=0 
 	
 #Huawei HiSuite (also other OEM custom programs I guess) it's of no use in AOSP builds