Fix inverted indicator leds on kbdfans/kbd19x (#11532)

keyboards/kbdfans/kbd19x/config.h

@@ -51,6 +51,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define LED_NUM_LOCK_PIN B2
 #define LED_CAPS_LOCK_PIN B0
 #define LED_SCROLL_LOCK_PIN B1
+#define LED_PIN_ON_STATE 0
 
 #define BACKLIGHT_PIN B6
 #ifdef BACKLIGHT_PIN