Android Q is now REL

Bug: 129943426
Test: Build
Change-Id: I99d58a4afeaf38c51a93cc95d9ea1f5666797602
Merged-In: I352e02484fa73ee924c84846913b93f7713c77ef
(cherry picked from commit 883ad4c8b24be8ea199285714c271ce11f96c160)
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 360533a..2aeef64 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -93,7 +93,7 @@
 
 # These are the current development codenames, if the build is not a final
 # release build.  If this is a final release build, it is simply "REL".
-PLATFORM_VERSION_CODENAME.QP1A := Q
+PLATFORM_VERSION_CODENAME.QP1A := REL
 
 ifndef PLATFORM_VERSION
   PLATFORM_VERSION := $(PLATFORM_VERSION.$(TARGET_PLATFORM_VERSION))