Unhardcode gpio keys device for checkstop monitor

The move to gpio-keys-polled will require evdev code to use the symlink
that the udev rule (60-persistent-input.rules) will get created.

Change-Id: I2be9dcbbf21a8bd212bc273ac488c891f07dd415
Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
1 file changed