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/powerpc/cpu/mpc85xx/release.S b/arch/powerpc/cpu/mpc85xx/release.S
index d37e1cc..391751c 100644
--- a/arch/powerpc/cpu/mpc85xx/release.S
+++ b/arch/powerpc/cpu/mpc85xx/release.S
@@ -276,8 +276,8 @@
 	mtspr	SPRN_L2CSR1,r3
 #endif
 
-	lis	r3,CONFIG_SYS_INIT_L2CSR0@h
-	ori	r3,r3,CONFIG_SYS_INIT_L2CSR0@l
+	lis	r3,CFG_SYS_INIT_L2CSR0@h
+	ori	r3,r3,CFG_SYS_INIT_L2CSR0@l
 	mtspr	SPRN_L2CSR0,r3
 	isync
 2: