platform_ToolchainOptions: fix x86 boards.

BUG=None
TEST=Passes on x86-alex.

Change-Id: I07e82e32716594e6f60c73ca0fae583a28605b74
Reviewed-on: https://chromium-review.googlesource.com/222991
Tested-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Commit-Queue: Jorge Lucangeli Obes <jorgelo@chromium.org>
1 file changed