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/at91sam9x5ek.h b/include/configs/at91sam9x5ek.h
index eb1d1ad..509c458 100644
--- a/include/configs/at91sam9x5ek.h
+++ b/include/configs/at91sam9x5ek.h
@@ -9,8 +9,8 @@
 #define __CONFIG_H__
 
 /* ARM asynchronous clock */
-#define CONFIG_SYS_AT91_SLOW_CLOCK	32768
-#define CONFIG_SYS_AT91_MAIN_CLOCK	12000000	/* 12 MHz crystal */
+#define CFG_SYS_AT91_SLOW_CLOCK	32768
+#define CFG_SYS_AT91_MAIN_CLOCK	12000000	/* 12 MHz crystal */
 
 /* general purpose I/O */
 
@@ -38,9 +38,9 @@
 
 /* SPL */
 
-#define CONFIG_SYS_MASTER_CLOCK		132096000
-#define CONFIG_SYS_AT91_PLLA		0x20c73f03
-#define CONFIG_SYS_MCKR			0x1301
-#define CONFIG_SYS_MCKR_CSS		0x1302
+#define CFG_SYS_MASTER_CLOCK		132096000
+#define CFG_SYS_AT91_PLLA		0x20c73f03
+#define CFG_SYS_MCKR			0x1301
+#define CFG_SYS_MCKR_CSS		0x1302
 
 #endif