Added a new URI updating preferred APN w/o change notification
Kazuhiro Ondo authored
Solving the issue that setting preferred APN from GDCT triggers
back APN change event and force unnecessary data call disconnects
and setups.

This patch adds one new URI used for preferred APN entry without
causing change notification via ContentObserver.

Bug:5448858
Change-Id: I2c132f367188b9a9da797fec65b3ff974c59a1b4
d616ee6f