i3c: Correct reference to the I²C device data type

I²C peripheral devices that are connected to the controller are
represented in the Linux kernel as objects of the struct i2c_client.
Fix this in the header file.

Signed-off-by: Andy Shevchenko <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Alexandre Belloni <[e-mail]>

include/linux/i3c/master.h

···
 #define I3C_BROADCAST_ADDR		0x7e
 #define I3C_MAX_ADDR			GENMASK(6, 0)
 
+struct i2c_client;
+
 struct i3c_master_controller;
 struct i3c_bus;
-struct i2c_device;
 struct i3c_device;
 
 /**