Update build tools version to 22.0.2. DO NOT MERGE.

Change-Id: Icb5bb90fe3b7c31059d97d87ed8e44c0d794236e
diff --git a/sdk/build_tools_source.prop_template b/sdk/build_tools_source.prop_template
index b83af7f..c9bfc2f 100644
--- a/sdk/build_tools_source.prop_template
+++ b/sdk/build_tools_source.prop_template
@@ -1,3 +1,3 @@
 Pkg.UserSrc=false
-Pkg.Revision=${PLATFORM_SDK_VERSION}.0.1
+Pkg.Revision=${PLATFORM_SDK_VERSION}.0.2