global: Move remaining CONFIG_SYS_NAND_* to CFG_SYS_NAND_*

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_NAND
namespace do not easily transition to Kconfig. In many cases they likely
should come from the device tree instead. Move these out of CONFIG
namespace and in to CFG namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/gardena-smart-gateway-at91sam.h b/include/configs/gardena-smart-gateway-at91sam.h
index 3d62efb..ba09831 100644
--- a/include/configs/gardena-smart-gateway-at91sam.h
+++ b/include/configs/gardena-smart-gateway-at91sam.h
@@ -22,13 +22,13 @@
 #define CONFIG_SYS_SDRAM_SIZE		0x08000000	/* 128 megs */
 
 /* NAND flash */
-#define CONFIG_SYS_NAND_BASE		0x40000000
+#define CFG_SYS_NAND_BASE		0x40000000
 /* our ALE is AD21 */
-#define CONFIG_SYS_NAND_MASK_ALE	BIT(21)
+#define CFG_SYS_NAND_MASK_ALE	BIT(21)
 /* our CLE is AD22 */
-#define CONFIG_SYS_NAND_MASK_CLE	BIT(22)
-#define CONFIG_SYS_NAND_ENABLE_PIN	AT91_PIN_PD4
-#define CONFIG_SYS_NAND_READY_PIN	AT91_PIN_PD5
+#define CFG_SYS_NAND_MASK_CLE	BIT(22)
+#define CFG_SYS_NAND_ENABLE_PIN	AT91_PIN_PD4
+#define CFG_SYS_NAND_READY_PIN	AT91_PIN_PD5
 
 /* SPL */
 
@@ -37,8 +37,8 @@
 #define CONFIG_SYS_MCKR			0x1301
 #define CONFIG_SYS_MCKR_CSS		0x1302
 
-#define CONFIG_SYS_NAND_U_BOOT_SIZE	0xa0000
-#define	CONFIG_SYS_NAND_U_BOOT_START	CONFIG_TEXT_BASE
-#define CONFIG_SYS_NAND_U_BOOT_DST	CONFIG_TEXT_BASE
+#define CFG_SYS_NAND_U_BOOT_SIZE	0xa0000
+#define	CFG_SYS_NAND_U_BOOT_START	CONFIG_TEXT_BASE
+#define CFG_SYS_NAND_U_BOOT_DST	CONFIG_TEXT_BASE
 
 #endif