ARM: pxa: rename IRQ_GPIO to PXA_GPIO_TO_IRQ

Avoid potential naming confliction since multiple architecture will be built
in a single kernel.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index 50c8331..1e6d796 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -166,8 +166,8 @@
 		.flags		= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start		= IRQ_GPIO(10),
-		.end		= IRQ_GPIO(10),
+		.start		= PXA_GPIO_TO_IRQ(10),
+		.end		= PXA_GPIO_TO_IRQ(10),
 		.flags		= IORESOURCE_IRQ,
 	},
 };