Fix issue #12939338: Android version showing as 'KKWT'

Thou shalt be...  L!

Change-Id: I53e66eaf64183fbab0b1035cdb376b25abab4879
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 4929abb..eedbfd2 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -41,7 +41,7 @@
   # which is the version that we reveal to the end user.
   # Update this value when the platform version changes (rather
   # than overriding it somewhere else).  Can be an arbitrary string.
-  PLATFORM_VERSION := KKWT
+  PLATFORM_VERSION := L
 endif
 
 ifeq "" "$(PLATFORM_SDK_VERSION)"