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/legoev3.h b/include/configs/legoev3.h
index bee064c..2664982 100644
--- a/include/configs/legoev3.h
+++ b/include/configs/legoev3.h
@@ -17,10 +17,10 @@
 /*
  * SoC Configuration
  */
-#define CONFIG_SYS_EXCEPTION_VECTORS_HIGH
-#define CONFIG_SYS_OSCIN_FREQ		24000000
-#define CONFIG_SYS_TIMERBASE		DAVINCI_TIMER0_BASE
-#define CONFIG_SYS_HZ_CLOCK		clk_get(DAVINCI_AUXCLK_CLKID)
+#define CFG_SYS_EXCEPTION_VECTORS_HIGH
+#define CFG_SYS_OSCIN_FREQ		24000000
+#define CFG_SYS_TIMERBASE		DAVINCI_TIMER0_BASE
+#define CFG_SYS_HZ_CLOCK		clk_get(DAVINCI_AUXCLK_CLKID)
 
 /*
  * Memory Info
@@ -38,7 +38,7 @@
  */
 #define CFG_SYS_NS16550_CLK	clk_get(DAVINCI_UART2_CLKID)
 
-#define CONFIG_SYS_SPI_CLK		clk_get(DAVINCI_SPI0_CLKID)
+#define CFG_SYS_SPI_CLK		clk_get(DAVINCI_SPI0_CLKID)
 
 /*
  * U-Boot general configuration