Set dist_group: "android" for frameworks/base java_sdk_libraries

dist_group replaces owner and the default is going to change, set it
to the current default "android" for frameworks/base java_sdk_libraries.

Bug: 186723288
Test: m checkbuild
Change-Id: I1526853951bcffbe5c5aec6fbc6ba8e0dbea95ad
Merged-In: I1526853951bcffbe5c5aec6fbc6ba8e0dbea95ad
diff --git a/test-mock/Android.bp b/test-mock/Android.bp
index 107292c..460a26d 100644
--- a/test-mock/Android.bp
+++ b/test-mock/Android.bp
@@ -48,6 +48,7 @@
     ],
     compile_dex: true,
     default_to_stubs: true,
+    dist_group: "android",
 }
 
 // Make the current.txt available for use by the cts/tests/signature tests.