Fix bugs introduced into Planck EZ code

keyboards/planck/ez/ez.c

@@ -228,13 +228,13 @@ uint32_t layer_state_set_kb(uint32_t state) {
     state = layer_state_set_user(state);
     uint8_t layer = biton32(state);
     switch (layer) {
-        case 3:
+        case 1:
             planck_ez_left_led_on();
             break;
-        case 4:
+        case 2:
             planck_ez_right_led_on();
             break;
-        case 6:
+        case 3:
             planck_ez_right_led_on();
             planck_ez_left_led_on();
             break;

quantum/stm32/chconf.h

@@ -48,7 +48,7 @@
  * @details Frequency of the system timer that drives the system ticks. This
  *          setting also defines the system tick time unit.
  */
-#define CH_CFG_ST_FREQUENCY                 1000
+#define CH_CFG_ST_FREQUENCY                 100000
 
 /**
  * @brief   Time delta constant for the tick-less mode.