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/arch/arm/cpu/armv8/fsl-layerscape/doc/README.lsch3 b/arch/arm/cpu/armv8/fsl-layerscape/doc/README.lsch3
index 9119d60..6f3fe7c 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/doc/README.lsch3
+++ b/arch/arm/cpu/armv8/fsl-layerscape/doc/README.lsch3
@@ -116,10 +116,10 @@
 Environment Variables
 =====================
 mcboottimeout:	MC boot timeout in milliseconds. If this variable is not defined
-		the value CONFIG_SYS_LS_MC_BOOT_TIMEOUT_MS will be assumed.
+		the value CFG_SYS_LS_MC_BOOT_TIMEOUT_MS will be assumed.
 
 mcmemsize:	MC DRAM block size in hex. If this variable is not defined, the value
-		CONFIG_SYS_LS_MC_DRAM_BLOCK_MIN_SIZE will be assumed.
+		CFG_SYS_LS_MC_DRAM_BLOCK_MIN_SIZE will be assumed.
 
 mcinitcmd:	This environment variable is defined to initiate MC and DPL deployment
 		from the location where it is stored(NOR, NAND, SD, SATA, USB)during