i2c: fix parameter of trace_i2c_result

According to the event i2c_result defined in include/trace/events/i2c.h,
the second parameter should be the number of messages instead of the
ended loop index. The value of ended loop index is the same as ret.

Signed-off-by: Ahbong Chang <cwahbong@google.com>
Reviewed-by: Todd Poynor <toddpoynor@google.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/i2c-core-base.c

@@ -1876,7 +1876,7 @@ int __i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
 		for (i = 0; i < ret; i++)
 			if (msgs[i].flags & I2C_M_RD)
 				trace_i2c_reply(adap, &msgs[i], i);
-		trace_i2c_result(adap, i, ret);
+		trace_i2c_result(adap, num, ret);
 	}
 
 	return ret;