m7-common: use new common kernel

* CodeAurora kk_2.7_rb1.21 based kernel

Change-Id: Ia7367daf459ca67de1dcf9b2ba64842ba9ee6758
m7-common: snd_soc_msm: Update PCM IDs for new kernel

* Set low latency and compressed PCM to correct values

Change-Id: I05deb58562e8da0286b81bf3994d8268deb7b56b
m7-common: Update SCO channel and rate

* New kernel changes INTERNAL_BT_SCO to SLIM_1

Change-Id: I1bb5fe15ee02d00cfddd968abb28a3c1c377cabe