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/drivers/core/Kconfig b/drivers/core/Kconfig
index b79e99b..8fde77c 100644
--- a/drivers/core/Kconfig
+++ b/drivers/core/Kconfig
@@ -14,7 +14,7 @@
 	help
 	  Enable driver model in SPL. You will need to provide a
 	  suitable malloc() implementation. If you are not using the
-	  full malloc() enabled by CONFIG_SYS_SPL_MALLOC_START,
+	  full malloc() enabled by CFG_SYS_SPL_MALLOC_START,
 	  consider using CONFIG_SPL_SYS_MALLOC_SIMPLE. In that case you
 	  must provide CONFIG_SPL_SYS_MALLOC_F_LEN to set the size.
 	  In most cases driver model will only allocate a few uclasses
@@ -27,7 +27,7 @@
 	help
 	  Enable driver model in TPL. You will need to provide a
 	  suitable malloc() implementation. If you are not using the
-	  full malloc() enabled by CONFIG_SYS_SPL_MALLOC_START,
+	  full malloc() enabled by CFG_SYS_SPL_MALLOC_START,
 	  consider using CONFIG_TPL_SYS_MALLOC_SIMPLE. In that case you
 	  must provide CONFIG_SPL_SYS_MALLOC_F_LEN to set the size.
 	  In most cases driver model will only allocate a few uclasses
@@ -42,7 +42,7 @@
 	help
 	  Enable driver model in VPL. You will need to provide a
 	  suitable malloc() implementation. If you are not using the
-	  full malloc() enabled by CONFIG_SYS_SPL_MALLOC_START,
+	  full malloc() enabled by CFG_SYS_SPL_MALLOC_START,
 	  consider using CONFIG_SPL_SYS_MALLOC_SIMPLE.
 
 config DM_WARN