compiler_wrapper: Disable warning implicit-function-declaration

Wimplicit-function-declaration has been promoted to be an default error
even with Wno-error. Disable the error by default since it is breaking
a lot of packages.

BUG=b:230345382
TEST=cq

Change-Id: Ib46b0b47a3e1dea3797739370a4d9cf92a4d25f9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/3637117
Tested-by: Manoj Gupta <manojgupta@chromium.org>
Auto-Submit: Manoj Gupta <manojgupta@chromium.org>
Reviewed-by: George Burgess <gbiv@chromium.org>
Commit-Queue: Manoj Gupta <manojgupta@chromium.org>
40 files changed