Ignore orientation change to preserve ApnEditor.

Test: manually w/ Vzw and Tmo SIM on marlin. UI rotates while preserving
all values
Bug: b/34956985
Change-Id: I1db34893fd91f99e38913565e7b67ccbfdcb0c93
(cherry picked from commit 76ad635ef7b5604cb314e244e1d7c42df020e743)
(cherry picked from commit f414d58ddfedf6c0c979c761aeb255eb1c16e4f3)
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index ddfbf60..1dcc431 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -1934,6 +1934,7 @@
                 android:permission="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
 
         <activity android:name="Settings$ApnEditorActivity"
+                android:configChanges="orientation|keyboardHidden|screenSize"
                 android:label="@string/apn_edit">
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />