buildroot

package/libgpiod: bump version to v0.1.2

This is a small bug-fix release:
  - include <poll.h> instead of <sys/poll.h> in gpioset
  - fix a formatting issue in gpioinfo for chips with >100 GPIO lines
  - fix a bug when requesting both-edges event notifications

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>