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/hsdk-4xd.h b/include/configs/hsdk-4xd.h
index 1d7b171..fcb2dec 100644
--- a/include/configs/hsdk-4xd.h
+++ b/include/configs/hsdk-4xd.h
@@ -22,8 +22,8 @@
  */
 
 #define CONFIG_SYS_DDR_SDRAM_BASE	0x80000000
-#define CONFIG_SYS_SDRAM_BASE		CONFIG_SYS_DDR_SDRAM_BASE
-#define CONFIG_SYS_SDRAM_SIZE		SZ_1G
+#define CFG_SYS_SDRAM_BASE		CONFIG_SYS_DDR_SDRAM_BASE
+#define CFG_SYS_SDRAM_SIZE		SZ_1G
 
 /*
  * UART configuration