cmhw: only expose userspace options if kernel supports it

Change-Id: I16e62b3a4b01f906db228fe84a32ec546c7a320e
m8: Increase the volume step at which the safe volume warning shows

Currently the warning shows up at less than half volume, at normal
listening volume. This bumps it up a bit.

Change-Id: Ie85bb036f75a55b2eb6d1802baba11e632c19908
m8: fixup whatsapp audio

add voip_tx as we are missing this which causes problems. .
props to @jackmu95 for discovering this issue.

Change-Id: I8c03de043d5045a96dd12f1a77ee764348b9d24e
Revert "m8: fixup whatsapp audio"

This reverts commit 375c54692205e80ed6c6c04e16ff3ad7ee2c70f5.
Support f2fs data and cache
ueventd: additional radio permissions

Change-Id: I9f81d03e8767bb0d9d0d05af512edec3de54db22
Merge branch 'kitkat' of https://github.com/task650/device_htc_m8 into multirom