omni: we are on 12.1 now

Change-Id: I97b8f05ec306d47071ca7700a47e60e97d1c1ead
diff --git a/config/version.mk b/config/version.mk
index ac6e17c..9bc9ff7 100644
--- a/config/version.mk
+++ b/config/version.mk
@@ -24,7 +24,7 @@
     ROM_VERSION := $(PLATFORM_VERSION)-$(shell date +%Y%m%d)-$(TARGET_PRODUCT_SHORT)-$(ROM_BUILDTYPE)
 endif
 
-ROM_BRANCH := android-12.0
+ROM_BRANCH := android-12.1
 
 # Apply it to build.prop
 PRODUCT_PRODUCT_PROPERTIES += \