pcmcia: Fix typo in locking documentation

This fixes a typo in the docs: "devie" -> "device".
Signed-off-by: NNik Nyby <nikolas@gnu.org>
Signed-off-by: NJiri Kosina <jkosina@suse.com>

Documentation/pcmcia/locking.txt

@@ -96,7 +96,7 @@ or single-use fields not mentioned):
 3. Per PCMCIA-device Data:
 --------------------------
 
-The "main" struct pcmcia_devie is protected as follows (read-only fields
+The "main" struct pcmcia_device is protected as follows (read-only fields
 or single-use fields not mentioned):