[ARM] pxa: fix the conflicting non-static declarations of global_gpios[]

Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index 0f65680..7fff467 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -802,7 +802,7 @@
 	&pcmcia,
 };
 
-struct gpio_ress global_gpios[] = {
+static struct gpio_ress global_gpios[] = {
 	HX4700_GPIO_IN(GPIO12_HX4700_ASIC3_IRQ, "ASIC3_IRQ"),
 	HX4700_GPIO_IN(GPIO13_HX4700_W3220_IRQ, "W3220_IRQ"),
 	HX4700_GPIO_IN(GPIO14_HX4700_nWLAN_IRQ, "WLAN_IRQ"),