cm: Update to 6.0.1_r22

Change-Id: I9e684808d7ca0633f1ea6e2154135e7c52a5c8d1
diff --git a/default.xml b/default.xml
index 57711d4..352a1af 100644
--- a/default.xml
+++ b/default.xml
@@ -4,7 +4,7 @@
   <remote  name="aosp"
            fetch="https://android.googlesource.com"
            review="android-review.googlesource.com"
-           revision="refs/tags/android-6.0.1_r17" />
+           revision="refs/tags/android-6.0.1_r22" />
 
   <remote  name="github"
            fetch=".."