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/xilinx/zynq/board.c b/board/xilinx/zynq/board.c
index 17ee541..df4c457 100644
--- a/board/xilinx/zynq/board.c
+++ b/board/xilinx/zynq/board.c
@@ -105,7 +105,7 @@
 	return board_late_init_xilinx();
 }
 
-#if !defined(CONFIG_SYS_SDRAM_BASE) && !defined(CONFIG_SYS_SDRAM_SIZE)
+#if !defined(CFG_SYS_SDRAM_BASE) && !defined(CFG_SYS_SDRAM_SIZE)
 int dram_init_banksize(void)
 {
 	return fdtdec_setup_memory_banksize();
@@ -123,8 +123,8 @@
 #else
 int dram_init(void)
 {
-	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
-				    CONFIG_SYS_SDRAM_SIZE);
+	gd->ram_size = get_ram_size((void *)CFG_SYS_SDRAM_BASE,
+				    CFG_SYS_SDRAM_SIZE);
 
 	zynq_ddrc_init();