serrano: Enable BLE peripheral mode

Change-Id: I8c499b5b0bb4e2e8f0bb421250b3474c5efe5180
serrano: Disable bluetooth wide band speech

Change-Id: I0b5533b049e23abd94378a34deb6aa40a88d9ec5
serrano: Update prop file list

Change-Id: I6abe288c842ae85d966d5b582615c2335227121f