m7-common: use QCOM hardware keystore

Change-Id: I91ec849a8bb70bb28c2b2da57d2191890a3e1619

Conflicts:

	rootdir/etc/ueventd.qcom.rc
m7-common: add TFA9887 config files to proprietary list

Change-Id: I2d72287846ced8fda55609151ee2ac3d484cce7c
m7-common: libaudioamp: split amp functionality into amp files

Change-Id: Idd5c0e73a4d49b6f8ba227bd1de2e33f92500960
m7-common: tfa9887: initial implementation of tfa9887 amp control

Change-Id: Ie51c5a27409c76b9394a85ce1dc9cfe18679a996
m7-common: ensure /data, /cache are formatted

Change-Id: I1755bcb0f23d20f8237d3e5cba27068362d49c9c
m7-common: tfa9887: fix up set volume API

Change-Id: I7f5a4ae19c356c1fe91b53538770eb9d985542e1
m7-common: tfa9887: fix EQ setting loading

* Epic copy paste fail

Change-Id: I2b7aba824b6061ea3ebc145d8301924986d73a5d