Re-implement headset settings

Signed-off-by: Ayysir <ayysir@aospal.com>
Change-Id: I1ee973bec35d95285a646b86213ced3dd15852ed
Settings: add back some hardware tunables

Change-Id: If55ba3a5f45614cfdf0087e2c57205461a5bbdc6
Settings: Fix carrier/sim slot string logic for msim settings

Original change: http://review.cyanogenmod.org/#/c/74670/
Original author: cretin45 <cretin45@gmail.com>

Change-Id: Ieaf660ec3b937ea7dd26394be343c439fbdfbd80
Settings: Disable mobile network switch if MSIM

Original change: http://review.cyanogenmod.org/#/c/74455/
Original author: cretin45 <cretin45@gmail.com>

Change-Id: Ia676e31eefec3c90cc7e501f4e4766adaaf2955d
Settings: Update many Spanish translations in Settings app

Change-Id: I2a7bfc2513c48a11a945115c50d3297432fc4a71