Device specific mixer_paths.xml

 * Copied from device/oppo/msm8974-common/audio/mixer_paths.xml

Change-Id: I68221efe457f2ebea8c18db0a8f8714578dba4b0
bacon: Update model name to One A0001
Twrp: add flags, fstab, make default
bacon: Add defaults for new offload paths

Change-Id: I10c536f1ee09fc5088738825ba888bd0c41db2c1