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/MCR3000.h b/include/configs/MCR3000.h
index a5518d3..2e7140c 100644
--- a/include/configs/MCR3000.h
+++ b/include/configs/MCR3000.h
@@ -62,8 +62,8 @@
 #define CONFIG_SYS_INIT_RAM_ADDR	(CONFIG_SYS_IMMR + 0x2800)
 #define	CONFIG_SYS_INIT_RAM_SIZE	(0x2e00 - 0x2800)
 
-/* RAM configuration (note that CONFIG_SYS_SDRAM_BASE must be zero) */
-#define	CONFIG_SYS_SDRAM_BASE		0x00000000
+/* RAM configuration (note that CFG_SYS_SDRAM_BASE must be zero) */
+#define	CFG_SYS_SDRAM_BASE		0x00000000
 
 /* FLASH organization */
 #define CONFIG_SYS_FLASH_BASE		CONFIG_TEXT_BASE