fs: vboxsf: fix a kernel-doc warning

Fix function parameters to prevent kernel-doc warnings.

vboxsf_wrappers.c:132: warning: Function parameter or member 'create_parms' not described in 'vboxsf_create'
vboxsf_wrappers.c:132: warning: Excess function parameter 'param' description in 'vboxsf_create'

Signed-off-by: Randy Dunlap <[e-mail]>
Cc: Hans de Goede <[e-mail]>
Cc: Alexander Viro <[e-mail]>
Cc: Christian Brauner <[e-mail]>
Reviewed-by: Hans de Goede <[e-mail]>
Signed-off-by: Jonathan Corbet <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

fs/vboxsf/vboxsf_wrappers.c

···
  * vboxsf_create - Create a new file or folder
  * @root:         Root of the shared folder in which to create the file
  * @parsed_path:  The path of the file or folder relative to the shared folder
- * @param:        create_parms Parameters for file/folder creation.
+ * @create_parms: Parameters for file/folder creation.
  *
  * Create a new file or folder or open an existing one in a shared folder.
  * Note this function always returns 0 / success unless an exceptional condition