tests: gpioinfo: test incorrect input
tests: gpioinfo: test incorrect input

Check if gpioinfo behaves correctly if the chip for which we want the
info dumped doesn't exist.

Signed-off-by: Bartosz Golaszewski <108de5fbc428215dc26df4468b48691526611148@gmail.com>

brgl/libgpiod,brgl/libgpiod,brgl/libgpiod,brgl/libgpiod