expressatt: enable built-in WiFi

Change-Id: Icaf800338003c6079b315f03e817e073aa04a6be
expressatt: Clean up Samsung device inheritance

* Separate expressatt/apexqtmo from d2lte
* Move apexq/expressatt init scripts to device trees
* Do not dex to /cache
* Split proprietary lib handling between msm8960-common and device trees
* Move express-specific init items to init.target.rc

TODO:
* Figure out what proprietary files are actually necessary, and which
  can be shared with msm8960-common ones

Change-Id: I2eef51b5e3f083e1eb690453c9dacb3fe64089f2
expressatt: fix wifi MAC

Change-Id: I48ab01839bb9c3251cdeaae065fabb7a4945f509
expressatt: include missing overlays

Change-Id: Ia2be68d3ba47875cd4ab8e2a8c1c285435bf6ef8
Increase in call volume

*  The in-call volume is rather too low. This is applicable for across all CM based Roms.
   A little boost will go a long way to correct this. Credit XDA user kaos420.

Change-Id: Ia264b49594f4e553828c3a13d25874c840d2b337
expressatt: fix VOIP

Change-Id: I4cac05a4c43ab2011d96aa15de876e2dba75dacf
expressatt: cleanup sensor init code

Change-Id: I643035b0a24a3b9aa66a6af77cb507fd286ed771
Apexq: update BLE config (with thanks to Arco)

Change-Id: Iad9a44a6f87dda532a03565d991ec7d0771020b2
expressatt: wifimac.sh is only needed in recovery

Change-Id: I5d210bb86d0ceec16443de4799aba479a32d26a3
expressatt: fix voice input

- derped in mass cleanup madness

Change-Id: Ib302f701243ce1d1b76e317ab8ccd7b08fb5e688
expressatt: overlay cleanup

Change-Id: I8629aee07295c9c8dadef8d93c1bd4b8405e3c6e