ARM: at91: make gpio register base soc independant

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reviewed-by: Ryan Mallon <rmallon@gmail.com>
diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index b84a9f6..1e9c79f 100644
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -273,15 +273,15 @@
 static struct at91_gpio_bank at91sam9260_gpio[] = {
 	{
 		.id		= AT91SAM9260_ID_PIOA,
-		.offset		= AT91_PIOA,
+		.regbase	= AT91SAM9260_BASE_PIOA,
 		.clock		= &pioA_clk,
 	}, {
 		.id		= AT91SAM9260_ID_PIOB,
-		.offset		= AT91_PIOB,
+		.regbase	= AT91SAM9260_BASE_PIOB,
 		.clock		= &pioB_clk,
 	}, {
 		.id		= AT91SAM9260_ID_PIOC,
-		.offset		= AT91_PIOC,
+		.regbase	= AT91SAM9260_BASE_PIOC,
 		.clock		= &pioC_clk,
 	}
 };