Update version of the build tools to be 22.0.0

Change-Id: I8c6c1ce2cd78665c7e9e806fabc3e6b94795cfa4
diff --git a/sdk/build_tools_source.prop_template b/sdk/build_tools_source.prop_template
index a110060..5d62307 100644
--- a/sdk/build_tools_source.prop_template
+++ b/sdk/build_tools_source.prop_template
@@ -1,3 +1,3 @@
 Pkg.UserSrc=false
-Pkg.Revision=${PLATFORM_SDK_VERSION}.1.3
+Pkg.Revision=${PLATFORM_SDK_VERSION}.0.0