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/board/Synology/common/legacy.c b/board/Synology/common/legacy.c
index 06f964f..a0bace7 100644
--- a/board/Synology/common/legacy.c
+++ b/board/Synology/common/legacy.c
@@ -56,8 +56,8 @@
 	t = (struct tag_mv_uboot *)&params->u;
 
 	t->uboot_version = VER_NUM | syno_board_id();
-	t->tclk = CONFIG_SYS_TCLK;
-	t->sysclk = CONFIG_SYS_TCLK * 2;
+	t->tclk = CFG_SYS_TCLK;
+	t->sysclk = CFG_SYS_TCLK * 2;
 	t->isusbhost = usb_port_modes();
 
 	for (i = 0; i < ETHADDR_MAX; i++) {