cleanup: Don't shadow NULL with an enum

For the few platforms without gpio.inc, use this

  enum gpio_signal {
     GPIO_COUNT
  };

instead of this

  enum gpio_signal {
     NULL
  };

The only reason this worked at all is that the headers are
included in a particular order.

BUG=none
BRANCH=none
TEST=make buildall

Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Change-Id: I81533f3614d0b4c7389f9edd42cd8ac018581f46
Reviewed-on: https://chromium-review.googlesource.com/278120
Reviewed-by: Randall Spangler <rspangler@chromium.org>

0 files changed, 0 insertions, 0 deletions