dcd_msp430x5xx: Fix typos in dcd_edpt_clear_stall.

src/portable/ti/msp430x5xx/dcd_msp430x5xx.c

@@ -368,11 +368,11 @@ void dcd_edpt_clear_stall (uint8_t rhport, uint8_t ep_addr)
   {
     if(dir == TUSB_DIR_OUT)
     {
-      USBOEPCNT_0 &= ~STALL;
+      USBOEPCNF_0 &= ~STALL;
     }
     else
     {
-      USBIEPCNT_0 &= ~STALL;
+      USBIEPCNF_0 &= ~STALL;
     }
   }
   else