Move small macropad-ish layouts to data driven (#20341)

keyboards/handwired/6key/6key.c

@@ -13,7 +13,7 @@
   * You should have received a copy of the GNU General Public License
   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
   */
-#include "6key.h"
+#include "quantum.h"
 
 bool dip_switch_update_kb(uint8_t index, bool active) {
     if (!dip_switch_update_user(index, active)) { return false; }