config: fix compile issue

We need to make autogvm-gki-llvm-64 compile well for scan.
Change in gvmauto.conf is to fix compile issue by skipping some files.
Change in sa6155conf in to fix compile issue after move to techpack.

Change-Id: I9d30b0e3160dcf87d8d455e7e2a812f03537bcab
Signed-off-by: Hexuan Zhu <hexuzhu@codeaurora.org>