drivers: soc: Clean up voice_svc on kernel 4.9

Voice-svc is not used anymore, clean up related files and codes.

CRs-Fixed: 2001770
Change-Id: I39c339c76ad718742eb02ef1fddf5f54a6dd0840
Signed-off-by: Xiaoyu Ye <benyxy@codeaurora.org>
4 files changed