Drivers: hv: vmbus: Fix kernel-doc

Drivers: hv: vmbus: Fix kernel-doc

drivers/hv/vmbus_drv.c:1587: warning: expecting prototype for __vmbus_child_driver_register(). Prototype was for __vmbus_driver_register() instead.

Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2210
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20220919063815.1881-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>