usb: xhci-mtk: Fix typo

fix this small typo u3_ports_disabed => u3_ports_disabled

Fixes: 55ba6e9e (usb: xhci-mtk: support option to disable usb3 ports)
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20200808124906.89976-1-linux@fw-web.deSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/xhci-mtk.c

@@ -77,7 +77,7 @@ static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk)
 {
 	struct mu3c_ippc_regs __iomem *ippc = mtk->ippc_regs;
 	u32 value, check_val;
-	int u3_ports_disabed = 0;
+	int u3_ports_disabled = 0;
 	int ret;
 	int i;
 
@@ -92,7 +92,7 @@ static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk)
 	/* power on and enable u3 ports except skipped ones */
 	for (i = 0; i < mtk->num_u3_ports; i++) {
 		if ((0x1 << i) & mtk->u3p_dis_msk) {
-			u3_ports_disabed++;
+			u3_ports_disabled++;
 			continue;
 		}
 
@@ -117,7 +117,7 @@ static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk)
 	check_val = STS1_SYSPLL_STABLE | STS1_REF_RST |
 			STS1_SYS125_RST | STS1_XHCI_RST;
 
-	if (mtk->num_u3_ports > u3_ports_disabed)
+	if (mtk->num_u3_ports > u3_ports_disabled)
 		check_val |= STS1_U3_MAC_RST;
 
 	ret = readl_poll_timeout(&ippc->ip_pw_sts1, value,