Fixing DecadePad Numlock LED Bug (#8831)

* Fixing Numlock LED Bugs

* Change LED CODE to new API

keyboards/reversestudio/decadepad/decadepad.c

@@ -1,7 +1,16 @@
 #include "decadepad.h"
+void matrix_init_kb(void) {
+  led_init_ports();
+  matrix_init_user(); 
+};
+
+void led_init_ports(void) {
+  setPinOutput(D4);
+}
+
 bool led_update_kb(led_t led_state) {
     if (led_update_user(led_state)){
-        writePin(D4, led_state.num_lock);
+        writePin(D4, !led_state.num_lock);
     }
     return true;
 }