android: binderfs: add missing parameters in binder_ctl_ioctl()'s doc

The kernel-doc comment for binder_ctl_ioctl() lacks descriptions for the
@file, @cmd, and @arg parameters, which triggers warnings during
documentation builds.

Add the missing parameter descriptions to keep the
kernel-doc consistent and free of warnings.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202511201725.ni2HZ2PP-lkp@intel.com/
Signed-off-by: Sunday Adelodun <adelodunolaoluwa@yahoo.com>
Link: https://patch.msgid.link/20251121111203.21800-1-adelodunolaoluwa@yahoo.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: sadelodun

drivers/android/binderfs.c

@@ -224,6 +224,9 @@ static int binderfs_binder_device_create(struct inode *ref_inode,
 
 /**
  * binder_ctl_ioctl - handle binder device node allocation requests
+ * @file: The file pointer for the binder-control device node.
+ * @cmd: The ioctl command.
+ * @arg: The ioctl argument.
  *
  * The request handler for the binder-control device. All requests operate on
  * the binderfs mount the binder-control device resides in: