SDK: update SDK to API 15

Change-Id: Ie6eecb86c441ef71a0677884be4c9fdfcd2737de
diff --git a/sdk/source_source.properties b/sdk/source_source.properties
index 7cb1d33..d0b390b 100644
--- a/sdk/source_source.properties
+++ b/sdk/source_source.properties
@@ -1,4 +1,4 @@
 Pkg.UserSrc=false
 Pkg.Revision=1
-AndroidVersion.ApiLevel=14
+AndroidVersion.ApiLevel=15
 #AndroidVersion.CodeName=