global: Move remaining CONFIG_SYS_* to CFG_SYS_*

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS 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/system-constants.h b/include/system-constants.h
index 07c3505..0d6b71b 100644
--- a/include/system-constants.h
+++ b/include/system-constants.h
@@ -12,10 +12,10 @@
 #define SYS_INIT_SP_ADDR	CONFIG_CUSTOM_SYS_INIT_SP_ADDR
 #else
 #ifdef CONFIG_MIPS
-#define SYS_INIT_SP_ADDR	(CFG_SYS_SDRAM_BASE + CONFIG_SYS_INIT_SP_OFFSET)
+#define SYS_INIT_SP_ADDR	(CFG_SYS_SDRAM_BASE + CFG_SYS_INIT_SP_OFFSET)
 #else
 #define SYS_INIT_SP_ADDR	\
-	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+	(CFG_SYS_INIT_RAM_ADDR + CFG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
 #endif
 #endif