[Keyboard] Fix function references IDB 60 (#10810)

Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Thorben <34752364+itspngu@users.noreply.github.com>

keyboards/idb/idb_60/idb_60.c

@@ -15,3 +15,19 @@ void led_set_kb(uint8_t usb_led) {
 
 	led_set_user(usb_led);
 }
+
+inline void _idb_60_caps_led_on(void) {
+    writePinLow(C5);
+}
+
+inline void _idb_60_fn_led_on(void) {
+    writePinLow(C4);
+}
+
+inline void _idb_60_caps_led_off(void) {
+    writePinHigh(C5);
+}
+
+inline void _idb_60_fn_led_off(void) {
+    writePinHigh(C4);
+}

keyboards/idb/idb_60/idb_60.h

@@ -2,24 +2,13 @@
 
 #include "quantum.h"
 
-inline void _idb_60_caps_led_on(void) {
-    writePinHigh(C5);
-}
-
-inline void _idb_60_fn_led_on(void) {
-    writePinHigh(C4);
-}
-
-inline void _idb_60_caps_led_off(void) {
-    writePinLow(C5);
-}
-
-inline void _idb_60_fn_led_off(void) {
-    writePinLow(C4);
-}
+void _idb_60_caps_led_on(void);
+void _idb_60_fn_led_on(void);
+void _idb_60_caps_led_off(void);
+void _idb_60_fn_led_off(void);
 
-#define _idb_60_esc_led_on _idb_60_fn_led_on
-#define _idb_60_esc_led_off _idb_60_fn_led_off
+#define _idb_60_esc_led_on() _idb_60_fn_led_on()
+#define _idb_60_esc_led_off() _idb_60_fn_led_off()
 
 #define LAYOUT( \
 	K00, K10, K01, K11, K02, K12, K03, K13, K04, K14, K05, K15, K06, K16, K07,\