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/devkit3250.h b/include/configs/devkit3250.h
index 4236612..5244b9c 100644
--- a/include/configs/devkit3250.h
+++ b/include/configs/devkit3250.h
@@ -35,8 +35,8 @@
 /*
  * NAND controller
  */
-#define CONFIG_SYS_NAND_BASE		SLC_NAND_BASE
-#define CONFIG_SYS_NAND_BASE_LIST	{ CONFIG_SYS_NAND_BASE }
+#define CFG_SYS_NAND_BASE		SLC_NAND_BASE
+#define CFG_SYS_NAND_BASE_LIST	{ CFG_SYS_NAND_BASE }
 
 /*
  * NAND chip timings
@@ -79,10 +79,10 @@
  */
 
 /* U-Boot will be 0x60000 bytes, loaded and run at CONFIG_TEXT_BASE */
-#define CONFIG_SYS_NAND_U_BOOT_SIZE	0x60000
+#define CFG_SYS_NAND_U_BOOT_SIZE	0x60000
 
-#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_START	CONFIG_TEXT_BASE
+#define CFG_SYS_NAND_U_BOOT_DST	CONFIG_TEXT_BASE
 
 /* See common/spl/spl.c  spl_set_header_raw_uboot() */