Update version of the support lib. DO NOT MERGE.

New artifact version: 22.0.0 to match API 22.
Extra package revision incremented to 12.

(cherry picked from commit 48e8e567c0f1411099499f2edcad318ab861c5fa)

Change-Id: I2e46e573361d35fc89db95bd376c72dad90fe4a9
diff --git a/build.gradle b/build.gradle
index 928a736..d364879 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,8 +9,8 @@
     }
 }
 
-ext.supportVersion = '21.0.3'
-ext.extraVersion = 10
+ext.supportVersion = '22.0.0'
+ext.extraVersion = 12
 ext.supportRepoOut = ''
 ext.buildToolsVersion = '21.0.0'
 ext.buildNumber = Integer.toString(ext.extraVersion)