Disable llvm_ias on chromeos-kernel-upstream

Disable LLVM's integrated assembler temporarily due to build failures
reported at https://github.com/ClangBuiltLinux/linux/issues/1209.

BUG=chromium:1162709
TEST=None

Change-Id: Idd6612fcf7f54f3b20132b6c913b47f25de2ebc3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/2621748
Reviewed-by: Allen Webb <allenwebb@google.com>
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Reviewed-by: Lukasz Majczak <lmajczak@google.com>
Commit-Queue: Alex Levin <levinale@google.com>
Tested-by: Alex Levin <levinale@google.com>
Auto-Submit: Alex Levin <levinale@google.com>
1 file changed