m7-common: remove old camera flags

Change-Id: Ib42b463e34ca65a9c921ad225cc7c553afc1fd25
m7: Underp BT tethering

Change-Id: Ia3e028a068ab75f35463721c483b0ca4a3f00b16
m7: Fix Bluetooth sleep bugs

 * Switch to HTC's ioctl interface
 * Set polarity to low
 * Enable two stopbits for serial device

Change-Id: I69f4d60c8cb57437d455ce8fd7651f422d048a30
m7-common: show LTE icon instead of 4G

Change-Id: I648f94cafb85026e8b242a04ff4f6ac12d2a934e
m7-common: remove deprecated overlay options

Change-Id: I2158f9ec378f3faceee05aa982984f547d480cc6