Update build-tools version. DO NOT MERGE.

Change-Id: Ie67d2b1bdd739241e5f9b7c2ccf8dda5b06d17bc
diff --git a/sdk/build_tools_source.prop_template b/sdk/build_tools_source.prop_template
index 84e2767..a110060 100644
--- a/sdk/build_tools_source.prop_template
+++ b/sdk/build_tools_source.prop_template
@@ -1,3 +1,3 @@
 Pkg.UserSrc=false
-Pkg.Revision=${PLATFORM_SDK_VERSION}.1.2
+Pkg.Revision=${PLATFORM_SDK_VERSION}.1.3