board: freescale: emc2305: Pass chip_addr to set_fan_speed

emc2305 is a common driver. It should not use platform specific
i2c address for slave device.
Pass chip_addr as agrument to emc2305_init() and set_fan_speed()
so that emc2305 driver can be used with different platforms.

Signed-off-by: Wasim Khan <wasim.khan@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/board/freescale/common/emc2305.h b/board/freescale/common/emc2305.h
index eddf537..24c5410 100644
--- a/board/freescale/common/emc2305.h
+++ b/board/freescale/common/emc2305.h
@@ -1,8 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- * Copyright 2018 NXP
+ * Copyright 2018-2020 NXP
  *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #ifndef __EMC2305_H_
@@ -17,7 +16,7 @@
 
 #define NUM_OF_FANS			5
 
-void emc2305_init(void);
-void set_fan_speed(u8 data);
+void emc2305_init(int chip_addr);
+void set_fan_speed(u8 data, int chip_addr);
 
 #endif  /* __EMC2305_H_ */