m7-common: re-organize and clean-up snd_soc_msm

Remove duplicate sections: ANC Headset
Remove device-specific verbs/modifiers which duplicate the base verb/modifier
Remove unused devices: HAC Handset, SecondMic
Alphabetize within verbs, devices, and modifiers.

Change-Id: I34b21aae87a467ecc131c5c8f7da80a17acbfddd
m7-common: [WIP] snd_soc_msm: more overhaul

Commit message will be updated when cleanup and testing is complete.

Change-Id: I179dab83485379e08a9fc8c1ea2c4a8b8b8f80fa