media: Documentation: mc-core: Fix typo

Fix a typo in the mc-core.rst media driver API documentation. Due to its
nature, the typo unfortunately caused a warning during documentation
build.

Fixes: 03b282861ca7 ("media: mc-entity: Add a new helper function to get a remote pad for a pad")
Signed-off-by: Laurent Pinchart <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

Documentation/driver-api/media/mc-core.rst

···
 
 Helper functions can be used to find a link between two given pads, or a pad
 connected to another pad through an enabled link
-(:c:func:`media_entity_find_link()`, :c:func:`media_pad_remote_pad_first()`n
+(:c:func:`media_entity_find_link()`, :c:func:`media_pad_remote_pad_first()`,
 :c:func:`media_entity_remote_source_pad_unique()` and
 :c:func:`media_pad_remote_pad_unique()`).