quantum: remove direct quantum.h includes (#21507)

quantum/rgb_matrix/rgb_matrix.c

@@ -19,8 +19,13 @@
 #include "rgb_matrix.h"
 #include "progmem.h"
 #include "eeprom.h"
+#include "eeconfig.h"
+#include "keyboard.h"
+#include "sync_timer.h"
+#include "debug.h"
 #include <string.h>
 #include <math.h>
+#include <stdlib.h>
 
 #include <lib/lib8tion/lib8tion.h>
 

quantum/rgb_matrix/rgb_matrix.h

@@ -22,7 +22,7 @@
 #include <stdbool.h>
 #include "rgb_matrix_types.h"
 #include "color.h"
-#include "quantum.h"
+#include "keyboard.h"
 
 #ifdef IS31FL3731
 #    include "is31fl3731.h"

quantum/rgb_matrix/rgb_matrix_drivers.c

@@ -15,6 +15,7 @@
  */
 
 #include "rgb_matrix.h"
+#include "util.h"
 
 /* Each driver needs to define the struct
  *    const rgb_matrix_driver_t rgb_matrix_driver;