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/broadcom/bcm_ep/board.c b/board/broadcom/bcm_ep/board.c
index 6064eb4..e91fa40 100644
--- a/board/broadcom/bcm_ep/board.c
+++ b/board/broadcom/bcm_ep/board.c
@@ -26,7 +26,7 @@
 	 * Address of boot parameters passed to kernel
 	 * Use default offset 0x100
 	 */
-	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+	gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
 
 	return 0;
 }
@@ -36,14 +36,14 @@
  */
 int dram_init(void)
 {
-	gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
-				    CONFIG_SYS_SDRAM_SIZE);
+	gd->ram_size = get_ram_size((long *)CFG_SYS_SDRAM_BASE,
+				    CFG_SYS_SDRAM_SIZE);
 	return 0;
 }
 
 int dram_init_banksize(void)
 {
-	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+	gd->bd->bi_dram[0].start = CFG_SYS_SDRAM_BASE;
 	gd->bd->bi_dram[0].size = gd->ram_size;
 
 	return 0;