usb: musb: virthub: use HUB_CHAR_*

Fix  using the  bare numbers to set the 'wHubCharacteristics' field of the Hub
Descriptor while the values are #define'd in <linux/usb/ch11.h>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/musb/musb_virthub.c

@@ -349,9 +349,9 @@ int musb_hub_control(
 		desc->bDescriptorType = 0x29;
 		desc->bNbrPorts = 1;
 		desc->wHubCharacteristics = cpu_to_le16(
-				  0x0001	/* per-port power switching */
-				| 0x0010	/* no overcurrent reporting */
-				);
+			HUB_CHAR_INDV_PORT_LPSM /* per-port power switching */
+			| HUB_CHAR_NO_OCPM	/* no overcurrent reporting */
+			);
 		desc->bPwrOn2PwrGood = 5;	/* msec/2 */
 		desc->bHubContrCurrent = 0;