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/drivers/timer/imx-gpt-timer.c b/drivers/timer/imx-gpt-timer.c
index 72be297..9c3b64a 100644
--- a/drivers/timer/imx-gpt-timer.c
+++ b/drivers/timer/imx-gpt-timer.c
@@ -28,9 +28,9 @@
 #define GPT_CLKSRC_IPG_CLK		(1 << 6)
 #define GPT_CLKSRC_IPG_CLK_24M		(5 << 6)
 
-/* If CONFIG_SYS_HZ_CLOCK not specified et's default to 3Mhz */
-#ifndef CONFIG_SYS_HZ_CLOCK
-#define CONFIG_SYS_HZ_CLOCK		3000000
+/* If CFG_SYS_HZ_CLOCK not specified et's default to 3Mhz */
+#ifndef CFG_SYS_HZ_CLOCK
+#define CFG_SYS_HZ_CLOCK		3000000
 #endif
 
 struct imx_gpt_timer_regs {
@@ -60,7 +60,7 @@
 
 static int imx_gpt_setup(struct imx_gpt_timer_regs *regs, u32 rate)
 {
-	u32 prescaler = (rate / CONFIG_SYS_HZ_CLOCK) - 1;
+	u32 prescaler = (rate / CFG_SYS_HZ_CLOCK) - 1;
 
 	/* Reset the timer */
 	setbits_le32(&regs->cr, GPT_CR_SWR);
@@ -138,7 +138,7 @@
 		return ret;
 	}
 
-	uc_priv->clock_rate = CONFIG_SYS_HZ_CLOCK;
+	uc_priv->clock_rate = CFG_SYS_HZ_CLOCK;
 
 	return 0;
 }