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/socfpga_arria5_secu1.h b/include/configs/socfpga_arria5_secu1.h
index 261ae56..29b4b22 100644
--- a/include/configs/socfpga_arria5_secu1.h
+++ b/include/configs/socfpga_arria5_secu1.h
@@ -10,7 +10,7 @@
 #include <linux/stringify.h>
 
 /* Eternal oscillator */
-#define CONFIG_SYS_TIMER_RATE	40000000
+#define CFG_SYS_TIMER_RATE	40000000
 
 /* Memory configurations */
 #define PHYS_SDRAM_1_SIZE	0x20000000	/* 512MiB on SECU1 */
@@ -21,7 +21,7 @@
  * the last two bytes of the 128 bytes large NVRAM in the
  * RTC which begin at address 0x20
  */
-#define CONFIG_SYS_I2C_RTC_ADDR         0x68
+#define CFG_SYS_I2C_RTC_ADDR         0x68
 
 /* Environment settings */