ASoC: msm: add machine driver for APQ8084 in I2S mode

APQ8084 supports multiple MI2S ports with which different
devices like external Modem, Codec etc. can be connected. Add
new machine driver to support targets which have such devices
connected on the MI2S buses.

Change-Id: I12c36351b6423dbd7cfdbd0dd860c54a5ae6cb1c
Signed-off-by: Banajit Goswami <bgoswami@codeaurora.org>