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/configs/imx8qm_rom7720.h b/include/configs/imx8qm_rom7720.h
index fe27ac3..2e2e5ed 100644
--- a/include/configs/imx8qm_rom7720.h
+++ b/include/configs/imx8qm_rom7720.h
@@ -10,7 +10,7 @@
 #include <linux/stringify.h>
 #include <asm/arch/imx-regs.h>
 
-#define CONFIG_SYS_BOOTMAPSZ		(256 << 20)
+#define CFG_SYS_BOOTMAPSZ		(256 << 20)
 #define CFG_SYS_FSL_ESDHC_ADDR	0
 #define USDHC1_BASE_ADDR		0x5B010000
 #define USDHC2_BASE_ADDR		0x5B020000