Extend I/O resource for wdt0 for at32ap7000 devices

This patch extends the I/O resource to 0xfff000cf which will enable the
watchdog driver to access the reset cause (RCAUSE) register. Making it
capable of reporting boot status.
Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

arch/avr32/mach-at32ap/at32ap7000.c

@@ -474,7 +474,7 @@ static struct resource at32ap700x_rtc0_resource[] = {
 static struct resource at32_wdt0_resource[] = {
 	{
 		.start	= 0xfff000b0,
-		.end	= 0xfff000bf,
+		.end	= 0xfff000cf,
 		.flags	= IORESOURCE_MEM,
 	},
 };