[MTD] [NAND] OMAP2: remove duplicated #include

[Huang Weiyi]

Removed duplicated #include <asm/arch/gpmc.h> in 
drivers/mtd/onenand/omap2.c.

Signed-off-by: Huang Weiyi <weiyi.huang at gmail.com>

diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 8387e05..e39b21d 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -38,7 +38,6 @@
 #include <asm/arch/gpmc.h>
 #include <asm/arch/onenand.h>
 #include <asm/arch/gpio.h>
-#include <asm/arch/gpmc.h>
 #include <asm/arch/pm.h>

 #include <linux/dma-mapping.h>