omap3: fix minor typos

This patch fixes typos that were remaining after
the file and functions were renamed.
Signed-off-by: NSanjeev Premi <premi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/board-flash.c

 /*
- * board-sdp-flash.c
+ * board-flash.c
  * Modified from mach-omap2/board-3430sdp-flash.c
  *
  * Copyright (C) 2009 Nokia Corporation
@@ -189,7 +189,7 @@ static u8 get_gpmc0_type(void)
 }
 
 /**
- * sdp3430_flash_init - Identify devices connected to GPMC and register.
+ * board_flash_init - Identify devices connected to GPMC and register.
  *
  * @return - void.
  */