Bump patch level to 2

Bug: 68397894
Test: python build.py
Change-Id: I08e2af227da7f6d1d1198557eda3fbe4a7d20bc2
diff --git a/android_version.py b/android_version.py
index 2f3654b..e085579 100644
--- a/android_version.py
+++ b/android_version.py
@@ -15,5 +15,5 @@
 # limitations under the License.
 #
 
-patch_level = '1'
+patch_level = '2'
 svn_revision = 'r316199'