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/mtd/onenand/onenand_spl.c b/drivers/mtd/onenand/onenand_spl.c
index ab6f1a8..2699958 100644
--- a/drivers/mtd/onenand/onenand_spl.c
+++ b/drivers/mtd/onenand/onenand_spl.c
@@ -49,12 +49,12 @@
 
 static inline uint16_t onenand_readw(uint32_t addr)
 {
-	return readw(CONFIG_SYS_ONENAND_BASE + addr);
+	return readw(CFG_SYS_ONENAND_BASE + addr);
 }
 
 static inline void onenand_writew(uint16_t value, uint32_t addr)
 {
-	writew(value, CONFIG_SYS_ONENAND_BASE + addr);
+	writew(value, CFG_SYS_ONENAND_BASE + addr);
 }
 
 static enum onenand_spl_pagesize onenand_spl_get_geometry(void)
@@ -82,7 +82,7 @@
 static int onenand_spl_read_page(uint32_t block, uint32_t page, uint32_t *buf,
 					enum onenand_spl_pagesize pagesize)
 {
-	const uint32_t addr = CONFIG_SYS_ONENAND_BASE + ONENAND_DATARAM;
+	const uint32_t addr = CFG_SYS_ONENAND_BASE + ONENAND_DATARAM;
 	uint32_t offset;
 
 	onenand_writew(onenand_block_address(block),