usb: dwc3: core: switch to snps,dwc3

all other drivers using Synopsys IPs with DT
have a compatible of snps,$driver, in order
to add consistency, we are switching over to
snps,dwc3 but keeping synopsys,dwc3 in the core
driver to maintain backwards compatibility.

New DTS bindings should NOT use synopsys,dwc3.

Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/dwc3/core.c

@@ -734,6 +734,9 @@ static const struct dev_pm_ops dwc3_dev_pm_ops = {
 
 #ifdef CONFIG_OF
 static const struct of_device_id of_dwc3_match[] = {
+	{
+		.compatible = "snps,dwc3"
+	},
 	{
 		.compatible = "synopsys,dwc3"
 	},