global: Migrate CONFIG_IMX6_PWM_PER_CLK to CFG

Perform a simple rename of CONFIG_IMX6_PWM_PER_CLK to CFG_IMX6_PWM_PER_CLK

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index 9b8a8c1..8fbb40c 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -76,7 +76,7 @@
 	 * value here as a define. Replace it when we have the clock
 	 * framework.
 	 */
-	c = CONFIG_IMX6_PWM_PER_CLK;
+	c = CFG_IMX6_PWM_PER_CLK;
 	c = c * period_ns;
 	do_div(c, 1000000000);
 	*period_c = c;
diff --git a/include/configs/vining_2000.h b/include/configs/vining_2000.h
index c84353e..cdd2eee 100644
--- a/include/configs/vining_2000.h
+++ b/include/configs/vining_2000.h
@@ -43,7 +43,7 @@
 #define CONFIG_PCIE_IMX_PERST_GPIO	IMX_GPIO_NR(4, 6)
 #endif
 
-#define CONFIG_IMX6_PWM_PER_CLK 66000000
+#define CFG_IMX6_PWM_PER_CLK 66000000
 
 #ifdef CONFIG_ENV_IS_IN_MMC
 /* 0=user, 1=boot0, 2=boot1, * 4..7=general0..3. */