watchdog: imgpdc: Drop METAG dependency

Now that arch/metag/ has been removed, remove the METAG dependency from
the IMG IR device driver. The hardware is also present on MIPS SoCs so
the driver still has value.
Signed-off-by: James Hogan <jhogan@kernel.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: linux-watchdog@vger.kernel.org
Cc: linux-metag@vger.kernel.org

drivers/watchdog/Kconfig

@@ -1602,7 +1602,7 @@ config BCM7038_WDT
 config IMGPDC_WDT
 	tristate "Imagination Technologies PDC Watchdog Timer"
 	depends on HAS_IOMEM
-	depends on METAG || MIPS || COMPILE_TEST
+	depends on MIPS || COMPILE_TEST
 	select WATCHDOG_CORE
 	help
 	  Driver for Imagination Technologies PowerDown Controller