manifest: android-7.1.2_r8 -> android-7.1.2_r17

Change-Id: I0d48de66c0a57f7fee51890edc4fd9d41048491a
diff --git a/default.xml b/default.xml
index 191b70e..0e46f65 100644
--- a/default.xml
+++ b/default.xml
@@ -11,7 +11,7 @@
   <remote  name="aosp"
            fetch="https://android.googlesource.com"
            review="android-review.googlesource.com"
-           revision="refs/tags/android-7.1.2_r8" />
+           revision="refs/tags/android-7.1.2_r17" />
 
   <default revision="refs/heads/cm-14.1"
            remote="github"