Revert "Add backports for ath6kl"

This reverts commit 805d3bbc6a0235b1d2097845ee7264ef2f9eebca.
Move AudioFilters.csv to device, make libaudcal a prebuilt

Change-Id: I16f8672571d39a3c382b0c95ff5e0f05f451488d
Revert "TEMP:proprietary-files: Use stock audio.primary.msm7627a.so"

This reverts commit 5486fb6eb1719cfd3bcaf184beea0d5bb9e1e5c4.
TEMP: proprietary-files: Use stock audio_policy.msm7627a

Fixes in call mic issues. Building from source is nothing like
the stock one.........

Change-Id: I04e18b672038398da3c7f3de6f7f974d7bf56c47