Enable Cell broadcast menu in settings & MMS app

(cherry picked from commit 98edde7dcfc9b46fdf97defd4f7e7dce6653d669)
Do not disable voice call route on adev_open

This tries to correct bug:
- Mic does not work immediately after a new start / reboot

Change-Id: If246adfef443d61897a280a143d993807e5e56c2
(cherry picked from commit 430a0e5f575e95c140d6b7e80dbc275cc9a4aef5)
(cherry picked from commit f4966aaecfdf56ed7284318dbf07f2326b8045e7)
Revert "i9300: remove DeviceSettings"

This reverts commit 371d1e8dbb2fe0425d4c26633caf393ece74d748.