at91: nand: switch atmel_nand to generic GPIO API

Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Acked-by: Jens Scharsig (BuS Elektronik)<esw@bus-elektronik.de>
Tested-by: Jens Scharsig (BuS Elektronik)<esw@bus-elektronik.de>
Acked-by: Scott Wood <scottwood@freescale.com>
diff --git a/include/configs/ethernut5.h b/include/configs/ethernut5.h
index 252df54..480d867 100644
--- a/include/configs/ethernut5.h
+++ b/include/configs/ethernut5.h
@@ -149,7 +149,7 @@
 #define CONFIG_SYS_NAND_MASK_ALE	(1 << 21)
 /* our CLE is AD22 */
 #define CONFIG_SYS_NAND_MASK_CLE	(1 << 22)
-#define CONFIG_SYS_NAND_ENABLE_PIN	AT91_PIO_PORTC, 14
+#define CONFIG_SYS_NAND_ENABLE_PIN	GPIO_PIN_PC(14)
 #endif
 
 /* JFFS2 */