usb: ehci-omap: use clkdev aliases for functional clocks

Use the recently updated aliases to get functional clocks needed by
the driver. This allows the driver to acquire OMAP4-specific clocks
without having to use different clock names for OMAP3 and OMAP4.
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>

drivers/usb/host/ehci-omap.c

@@ -287,14 +287,14 @@ static int omap_start_ehc(struct ehci_hcd_omap *omap, struct usb_hcd *hcd)
 	}
 	clk_enable(omap->usbhost_ick);
 
-	omap->usbhost_hs_fck = clk_get(omap->dev, "usbhost_120m_fck");
+	omap->usbhost_hs_fck = clk_get(omap->dev, "hs_fck");
 	if (IS_ERR(omap->usbhost_hs_fck)) {
 		ret = PTR_ERR(omap->usbhost_hs_fck);
 		goto err_host_120m_fck;
 	}
 	clk_enable(omap->usbhost_hs_fck);
 
-	omap->usbhost_fs_fck = clk_get(omap->dev, "usbhost_48m_fck");
+	omap->usbhost_fs_fck = clk_get(omap->dev, "fs_fck");
 	if (IS_ERR(omap->usbhost_fs_fck)) {
 		ret = PTR_ERR(omap->usbhost_fs_fck);
 		goto err_host_48m_fck;