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/arch/arm/mach-imx/mx6/litesom.c b/arch/arm/mach-imx/mx6/litesom.c
index 699a3dc..2ba3245 100644
--- a/arch/arm/mach-imx/mx6/litesom.c
+++ b/arch/arm/mach-imx/mx6/litesom.c
@@ -172,7 +172,7 @@
 	 * Get actual RAM size, so we can adjust DDR row size for <512M
 	 * memories
 	 */
-	ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, SZ_512M);
+	ram_size = get_ram_size((void *)CFG_SYS_SDRAM_BASE, SZ_512M);
 	if (ram_size < SZ_512M) {
 		mem_ddr.rowaddr = 14;
 		mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr);
diff --git a/arch/arm/mach-imx/mx6/opos6ul.c b/arch/arm/mach-imx/mx6/opos6ul.c
index e9d7874..38ead8a 100644
--- a/arch/arm/mach-imx/mx6/opos6ul.c
+++ b/arch/arm/mach-imx/mx6/opos6ul.c
@@ -44,7 +44,7 @@
 int board_init(void)
 {
 	/* Address 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_FEC_MXC
 	setup_fec();