audio: merge in heavily modified mixer_paths.xml based off of HLTE

Trying to reslove the echo the caller gets due to audience chip not working
audio: mixer_paths: switch back to klte paths for all the sub mics
audio: more cleanup of mixer_paths.xml,

Removed configs not related to our device
audio: set gain on various mics to that of default on stock TMO ROM
audio: more cleaning up of the HLTE related configs from the limp merge
audio: mixer_paths.xml: merge back all the FM radio scenarios
audio: mixer_paths.xml: revert loopback configs to base
audio: mixer_paths.xml: merge back in call forwarding configs
audio: miser_paths.xml: merge back original video_call configs
audio: mixer_paths.xml: merge back original VoLTE configs
audio: mixer_paths.xml: merge back original TTY configs
audio: mixer_paths.xml: merge back original VOIP configs

* Echo is now finally fixed with all these related commits and intervirgil's
kernel
* audience chip is now working properly :)