ASoC: msm: add soc audio snd virtualization support

Add soc audio configuration SND_SOC_MSM8996_VM
for virtualization support.
The new virtualized soc audio is based on legacy
soc msm8996, removing dependency on ARCH_MSM8996
and various soc codec driver and pp features.

CRs-fixed: 2047379
Change-Id: I930bf78c2ebf2c605331b50a598b5a43ceed0e0f
Signed-off-by: Derek Chen <chenche@codeaurora.org>