usb: ehci: ehci-marvell: Update compatible string to official DT bindings

Official DT bindings use compatible string marvell,armada-3700-ehci.
Update drivers and DTS files.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/drivers/phy/marvell/comphy_a3700.c b/drivers/phy/marvell/comphy_a3700.c
index 7cde59b..c490dc6 100644
--- a/drivers/phy/marvell/comphy_a3700.c
+++ b/drivers/phy/marvell/comphy_a3700.c
@@ -937,7 +937,7 @@
 		 */
 		if (usb32 == 0) {
 			node = fdt_node_offset_by_compatible(
-				blob, -1, "marvell,armada3700-ehci");
+				blob, -1, "marvell,armada-3700-ehci");
 		} else {
 			node = fdt_node_offset_by_compatible(
 				blob, -1, "marvell,armada3700-xhci");