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/mvebu_armada-8k.h b/include/configs/mvebu_armada-8k.h
index 5debd91..358e06f 100644
--- a/include/configs/mvebu_armada-8k.h
+++ b/include/configs/mvebu_armada-8k.h
@@ -12,7 +12,7 @@
 #define CONFIG_SYS_TCLK		250000000	/* 250MHz */
 
 /* additions for new ARM relocation support */
-#define CONFIG_SYS_SDRAM_BASE	0x00000000
+#define CFG_SYS_SDRAM_BASE	0x00000000
 
 /* auto boot */