state: optimize xkb_state_led_update_all() Before: ran@ran:~/src/libxkbcommon$ ./test/bench-key-proc ran 20000000 iterations in 6.623018074s After: ran@ran:~/src/libxkbcommon$ ./test/bench-key-proc ran 20000000 iterations in 4.762291091s Not that anyone needs to process millions of keys per second... Signed-off-by: Ran Benita <ran234@gmail.com>