[ARM] pxa: move I2C pin configurations out into board specific files

Signed-off-by: Eric Miao <eric.miao@marvell.com>
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index 519138b..bf59cec 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -123,6 +123,10 @@
 	GPIO107_GPIO,	/* DS1WM_IRQ */
 	GPIO108_GPIO,	/* GSM_READY */
 	GPIO115_GPIO,	/* nPEN_IRQ */
+
+	/* I2C */
+	GPIO117_I2C_SCL,
+	GPIO118_I2C_SDA,
 };
 
 /*