phy: usbphyc: Fix not calling dev_err with a device

Use the phy's device.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Tested-by: Patrick Delaunay <patrick.delaunay@st.com>
diff --git a/drivers/phy/phy-stm32-usbphyc.c b/drivers/phy/phy-stm32-usbphyc.c
index c6d3048..9d4296d 100644
--- a/drivers/phy/phy-stm32-usbphyc.c
+++ b/drivers/phy/phy-stm32-usbphyc.c
@@ -311,7 +311,7 @@
 
 	if ((phy->id == 0 && args->args_count != 1) ||
 	    (phy->id == 1 && args->args_count != 2)) {
-		dev_err(dev, "invalid number of cells for phy port%ld\n",
+		dev_err(phy->dev, "invalid number of cells for phy port%ld\n",
 			phy->id);
 		return -EINVAL;
 	}