Use gradle 2.2 again

bug: 112314864
Change-Id: I6c04615a1b5e9a944d64600fe596cecb6a22b324
diff --git a/wrapper/gradle-wrapper.properties b/wrapper/gradle-wrapper.properties
index 33eed2e..bc6c615 100644
--- a/wrapper/gradle-wrapper.properties
+++ b/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=../../external/gradle/gradle-2.10-all.zip
+distributionUrl=../../external/gradle/gradle-2.2-bin.zip