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/tbs2910.h b/include/configs/tbs2910.h
index 7f19785..2d8bde1 100644
--- a/include/configs/tbs2910.h
+++ b/include/configs/tbs2910.h
@@ -13,7 +13,7 @@
 /* General configuration */
 
 /* Physical Memory Map */
-#define CONFIG_SYS_SDRAM_BASE		MMDC0_ARB_BASE_ADDR
+#define CFG_SYS_SDRAM_BASE		MMDC0_ARB_BASE_ADDR
 
 #define CONFIG_SYS_INIT_RAM_ADDR	IRAM_BASE_ADDR
 #define CONFIG_SYS_INIT_RAM_SIZE	IRAM_SIZE