ASoC: apq8064-i2s: Add machine driver for APQ8064 I2S

This machine driver implements the topology which voice
downlink/uplink streams from/to MDM are received via primary
spkr/mic I2S interfaces and internally loop back within LPASS
to MI2S interface with the other end connected to wcd9310
CODEC.

Change-Id: I5de277582e3f29711efa648c39ae059b1c872b8d
Signed-off-by: Kuirong Wang <kuirongw@codeaurora.org>