global: Move remaining CONFIG_SYS_SDRAM_* to CFG_SYS_SDRAM_*

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_SDRAM
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/nokia_rx51.h b/include/configs/nokia_rx51.h
index 2623f99..9ad4f59 100644
--- a/include/configs/nokia_rx51.h
+++ b/include/configs/nokia_rx51.h
@@ -161,7 +161,7 @@
  * FLASH and environment organization
  */
 
-#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
+#define CFG_SYS_SDRAM_BASE		PHYS_SDRAM_1
 #define CONFIG_SYS_INIT_RAM_ADDR	0x4020f800
 #define CONFIG_SYS_INIT_RAM_SIZE	0x800
 
@@ -170,7 +170,7 @@
  */
 
 #define SDRAM_SIZE			0x10000000	/* 256 MB */
-#define SDRAM_END			(CONFIG_SYS_SDRAM_BASE + SDRAM_SIZE)
+#define SDRAM_END			(CFG_SYS_SDRAM_BASE + SDRAM_SIZE)
 
 #define IMAGE_MAXSIZE			0x1FF800	/* 2 MB - 2 kB */
 #define KERNEL_OFFSET			0x40000		/* 256 kB */