Disable KeyboardLockInteractiveBrowserTest.SubsequentLockCallSupersedesPreviousCall on Mac

Bug: 1121172
Change-Id: I906b3bcce904a093a5e02343732e2799fa82eb00
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2988101


Reviewed-by: Andy Paicu <andypaicu@chromium.org>
Reviewed-by: Illia Klimov <elklm@chromium.org>
Commit-Queue: Andy Paicu <andypaicu@chromium.org>
Auto-Submit: Andy Paicu <andypaicu@chromium.org>
Owners-Override: Andy Paicu <andypaicu@google.com>
Cr-Commit-Position: refs/heads/master@{#896045}