Suppress checks for files in overlay profiles

I was getting warnings like these upon repo upload:
  Found a bad license header in these files:
      * /usr/local/google/home/dianders/chromiumos/src/overlays/overlay-waluigi/profiles/base/parent
      * /usr/local/google/home/dianders/chromiumos/src/overlays/overlay-waluigi/profiles/base/virtuals
      * /usr/local/google/home/dianders/chromiumos/src/overlays/overlay-waluigi/profiles/kernel-next/parent
      * /usr/local/google/home/dianders/chromiumos/src/overlays/overlay-waluigi/profiles/kernel-next/virtuals

BUG=None
TEST=No longer get warnings mentioned above upon repo upload.

Change-Id: I94076141ad08079f6a309e9260c280b9afd5148c
Reviewed-on: https://gerrit.chromium.org/gerrit/10686
Tested-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Ryan Cui <rcui@chromium.org>
Commit-Ready: Doug Anderson <dianders@chromium.org>
1 file changed