i3c: master: svc: fix doc warning in svc-i3c-master.c

Fix the following make W=1 warning:

  drivers/i3c/master/svc-i3c-master.c:207: warning: expecting prototype for struct svc_i3c_i3c_dev_data. Prototype was for struct svc_i3c_i2c_dev_data instead

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210602085544.4101980-1-yangyingliang@huawei.com