Disabling proguard on Launcher3 as it is a test target

Bug: 117527405
Change-Id: I4d32cf060eebaa0d8efe4f0a3a5c924eadcffa4a
diff --git a/Android.mk b/Android.mk
index cddd53d..727c541 100644
--- a/Android.mk
+++ b/Android.mk
@@ -74,6 +74,8 @@
     $(call all-java-files-under, src_flags)
 
 LOCAL_PROGUARD_FLAG_FILES := proguard.flags
+# Proguard is disable for testing. Derivarive prjects to keep proguard enabled
+LOCAL_PROGUARD_ENABLED := disabled
 
 LOCAL_SDK_VERSION := current
 LOCAL_MIN_SDK_VERSION := 21