usb: replace wait_ms() with mdelay()

Common code has a mdelay() func, so use that instead of the usb-specific
wait_ms() func.  This also fixes the build errors:

ohci-hcd.c: In function 'submit_common_msg':
/usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available
ohci-hcd.c:1519:9: sorry, unimplemented: called from here
/usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available
ohci-hcd.c:1816:10: sorry, unimplemented: called from here
/usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available
ohci-hcd.c:1827:10: sorry, unimplemented: called from here
/usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available
ohci-hcd.c:1844:10: sorry, unimplemented: called from here
/usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available
ohci-hcd.c:1563:11: sorry, unimplemented: called from here
/usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available
ohci-hcd.c:1583:9: sorry, unimplemented: called from here
make[1]: *** [ohci-hcd.o] Error 1

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Marek Vasut <marex@denx.de>
diff --git a/common/usb_hub.c b/common/usb_hub.c
index 84d0d3f..e0edaad 100644
--- a/common/usb_hub.c
+++ b/common/usb_hub.c
@@ -120,7 +120,7 @@
 	}
 
 	/* Wait at least 100 msec for power to become stable */
-	wait_ms(max(pgood_delay, (unsigned)100));
+	mdelay(max(pgood_delay, (unsigned)100));
 }
 
 void usb_hub_reset(void)
@@ -160,7 +160,7 @@
 	for (tries = 0; tries < MAX_TRIES; tries++) {
 
 		usb_set_port_feature(dev, port + 1, USB_PORT_FEAT_RESET);
-		wait_ms(200);
+		mdelay(200);
 
 		if (usb_get_port_status(dev, port + 1, &portsts) < 0) {
 			USB_HUB_PRINTF("get_port_status failed status %lX\n",
@@ -187,7 +187,7 @@
 		if (portstatus & USB_PORT_STAT_ENABLE)
 			break;
 
-		wait_ms(200);
+		mdelay(200);
 	}
 
 	if (tries == MAX_TRIES) {
@@ -232,7 +232,7 @@
 		if (!(portstatus & USB_PORT_STAT_CONNECTION))
 			return;
 	}
-	wait_ms(200);
+	mdelay(200);
 
 	/* Reset the port */
 	if (hub_port_reset(dev, port, &portstatus) < 0) {
@@ -240,7 +240,7 @@
 		return;
 	}
 
-	wait_ms(200);
+	mdelay(200);
 
 	/* Allocate a new device struct for it */
 	usb = usb_alloc_new_device();