tests: test case for gpiod_foreach_chip_noclose()
tests: test case for gpiod_foreach_chip_noclose()

Add a test for the noclose variants of the chip iterator routines.

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

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