battery saver mode: updates and LTE/4G fixes

4G options should work now.

thanx to Yanuar Harry<ai.the.smarties.physics@gmail.com>

Change-Id: I1a3146952e76022267f3b71aaffbfdc3e2d9b565
Signed-off-by: Dan Trifan <jimsth@gmail.com>
Merge "battery saver mode: updates and LTE/4G fixes" into kk44