[Keymap] Fixing Sol Rev2 default keymap OLED rotation. (#6448)

keyboards/rgbkb/sol/keymaps/default/keymap.c

@@ -300,7 +300,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 #ifdef OLED_DRIVER_ENABLE
 oled_rotation_t oled_init_user(oled_rotation_t rotation) {
   if (is_keyboard_master())
-    return OLED_ROTATION_90;
+    return OLED_ROTATION_270;
   return rotation;
 }