touch_updater: Adding wmahon to OWNERS file

BUG=b:281892620
TEST=CQ

Change-Id: If049d291dcd3d2798b2d4f626ab6502c56624aef
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/touch_updater/+/4517810
Commit-Queue: William Mahon <wmahon@google.com>
Tested-by: William Mahon <wmahon@google.com>
Reviewed-by: Henry Barnor <hbarnor@chromium.org>
1 file changed