global: Migrate CONFIG_POWER_LTC3676_I2C_ADDR to CFG

Perform a simple rename of CONFIG_POWER_LTC3676_I2C_ADDR to CFG_POWER_LTC3676_I2C_ADDR

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/gw_ventana.h b/include/configs/gw_ventana.h
index 0a9dfe7..85a2ad2 100644
--- a/include/configs/gw_ventana.h
+++ b/include/configs/gw_ventana.h
@@ -31,7 +31,7 @@
  * PMIC
  */
 #define CONFIG_POWER_PFUZE100_I2C_ADDR	0x08
-#define CONFIG_POWER_LTC3676_I2C_ADDR  0x3c
+#define CFG_POWER_LTC3676_I2C_ADDR  0x3c
 
 /* Various command support */