watchdog: sunxi: Change compatibles

The Allwinner A10 and A31 compatibles were following a slightly different
compatible patterns than the rest of the SoCs for historical reasons. Change
the compatibles to match the other pattern in the watchdog controller driver
for consistency.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt

@@ -2,13 +2,13 @@ Allwinner SoCs Watchdog timer
 
 Required properties:
 
-- compatible : should be "allwinner,<soc-family>-wdt", the currently supported
-  SoC families being sun4i and sun6i
+- compatible : should be either "allwinner,sun4i-a10-wdt" or
+               "allwinner,sun6i-a31-wdt"
 - reg : Specifies base physical address and size of the registers.
 
 Example:
 
 wdt: watchdog@01c20c90 {
-	compatible = "allwinner,sun4i-wdt";
+	compatible = "allwinner,sun4i-a10-wdt";
 	reg = <0x01c20c90 0x10>;
 };

drivers/watchdog/sunxi_wdt.c

@@ -205,7 +205,7 @@ static void sunxi_wdt_shutdown(struct platform_device *pdev)
 }
 
 static const struct of_device_id sunxi_wdt_dt_ids[] = {
-	{ .compatible = "allwinner,sun4i-wdt" },
+	{ .compatible = "allwinner,sun4i-a10-wdt" },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sunxi_wdt_dt_ids);