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/board/atmel/at91sam9rlek/at91sam9rlek.c b/board/atmel/at91sam9rlek/at91sam9rlek.c
index bca7c8d..11725f7 100644
--- a/board/atmel/at91sam9rlek/at91sam9rlek.c
+++ b/board/atmel/at91sam9rlek/at91sam9rlek.c
@@ -93,7 +93,7 @@
 	/* arch number of AT91SAM9RLEK-Board */
 	gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9RLEK;
 	/* adress of boot parameters */
-	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+	gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
 
 #ifdef CONFIG_CMD_NAND
 	at91sam9rlek_nand_hw_init();
@@ -104,7 +104,7 @@
 int dram_init(void)
 {
 	gd->ram_size = get_ram_size(
-		(void *)CONFIG_SYS_SDRAM_BASE,
-		CONFIG_SYS_SDRAM_SIZE);
+		(void *)CFG_SYS_SDRAM_BASE,
+		CFG_SYS_SDRAM_SIZE);
 	return 0;
 }