phy: sun4i-usb: Align H6 initialization logic with the kernel

H6 SOC needs additional initialization of PHY registers. Corresponding
changes can be found in the kernel patch [1].

Without this changes there is no enumeration of 'musb' gadget.

[1] - https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ae409cc7c3cdb9ac4a1dba3eae70efec3d6b6c79

Fixes: 35fa673e0e5f ("sunxi: phy: Add USB PHY support for Allwinner H6")
Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c
index b4bae22..f050645 100644
--- a/drivers/phy/allwinner/phy-sun4i-usb.c
+++ b/drivers/phy/allwinner/phy-sun4i-usb.c
@@ -282,7 +282,8 @@
 		return ret;
 	}
 
-	if (data->cfg->type == sun8i_a83t_phy) {
+	if (data->cfg->type == sun8i_a83t_phy ||
+	    data->cfg->type == sun50i_h6_phy) {
 		if (phy->id == 0) {
 			val = readl(data->base + data->cfg->phyctl_offset);
 			val |= PHY_CTL_VBUSVLDEXT;
@@ -324,7 +325,8 @@
 	int ret;
 
 	if (phy->id == 0) {
-		if (data->cfg->type == sun8i_a83t_phy) {
+		if (data->cfg->type == sun8i_a83t_phy ||
+		    data->cfg->type == sun50i_h6_phy) {
 			void __iomem *phyctl = data->base +
 				data->cfg->phyctl_offset;