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/at91sam9260ek.h b/include/configs/at91sam9260ek.h
index 574bfe3..0d76f41 100644
--- a/include/configs/at91sam9260ek.h
+++ b/include/configs/at91sam9260ek.h
@@ -31,8 +31,8 @@
  * SDRAM: 1 bank, min 32, max 128 MB
  * Initialized before u-boot gets started.
  */
-#define CONFIG_SYS_SDRAM_BASE		ATMEL_BASE_CS1
-#define CONFIG_SYS_SDRAM_SIZE		0x04000000
+#define CFG_SYS_SDRAM_BASE		ATMEL_BASE_CS1
+#define CFG_SYS_SDRAM_SIZE		0x04000000
 
 #define CONFIG_SYS_INIT_RAM_SIZE	(16 * 1024)
 #ifdef CONFIG_AT91SAM9XE