Re-add RGBW code, so RGB Underglow will compile

keyboards/ergodox_ez/config.h

@@ -81,9 +81,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /* fix space cadet rollover issue */
 #define DISABLE_SPACE_CADET_ROLLOVER
 
-// #define RGBW_BB_TWI
+#define RGBW_BB_TWI
 
-// #define RGBW 1
+#define RGBW 1
 
 /* "debounce" is measured in keyboard scans. Some users reported
  * needing values as high as 15, which was at the time around 50ms.