Android SDK: build tools 18.1.1 (RS fixes: windows EOL, YUV-to-RGB)

Change-Id: I02c11397681ee543cc5300170e5c2a7ba7e63da8
diff --git a/sdk/build_tools_source.properties b/sdk/build_tools_source.properties
index 0025a2a..7d096cc 100644
--- a/sdk/build_tools_source.properties
+++ b/sdk/build_tools_source.properties
@@ -1,3 +1,3 @@
 Pkg.UserSrc=false
-Pkg.Revision=18.1.0
+Pkg.Revision=18.1.1