Update platform SDK component to revision 2. [DO NOT MERGE]

Also update LayoutLib Api version.

Change-Id: I2ceca3d669919ca417b11d4cfb61c35177a46566
diff --git a/sdk/platform_source.prop_template b/sdk/platform_source.prop_template
index 7ecb1e2..452aa89 100644
--- a/sdk/platform_source.prop_template
+++ b/sdk/platform_source.prop_template
@@ -2,9 +2,9 @@
 Pkg.UserSrc=false
 Platform.Version=${PLATFORM_VERSION}
 Platform.CodeName=KitKat
-Pkg.Revision=1
+Pkg.Revision=2
 AndroidVersion.ApiLevel=${PLATFORM_SDK_VERSION}
 AndroidVersion.CodeName=${PLATFORM_VERSION_CODENAME}
-Layoutlib.Api=10
+Layoutlib.Api=12
 Layoutlib.Revision=1
 Platform.MinToolsRev=22