[ARM] netwinder: clean up GPIO naming

Netwinder was using gpio_xxx names which could clash with the GPIO
layer.  Add a 'nw_' prefix to ensure that these remain separate.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

drivers/mtd/maps/dc21285.c

@@ -32,16 +32,15 @@ static struct mtd_info *dc21285_mtd;
  */
 static void nw_en_write(void)
 {
-	extern spinlock_t gpio_lock;
 	unsigned long flags;
 
 	/*
 	 * we want to write a bit pattern XXX1 to Xilinx to enable
 	 * the write gate, which will be open for about the next 2ms.
 	 */
-	spin_lock_irqsave(&gpio_lock, flags);
-	cpld_modify(1, 1);
-	spin_unlock_irqrestore(&gpio_lock, flags);
+	spin_lock_irqsave(&nw_gpio_lock, flags);
+	nw_cpld_modify(CPLD_FLASH_WR_ENABLE, CPLD_FLASH_WR_ENABLE);
+	spin_unlock_irqrestore(&nw_gpio_lock, flags);
 
 	/*
 	 * let the ISA bus to catch on...