pcmcia: include bad CIS filename in error message

- Print the invalid CIS filename in the invalid filename message.
- Use sizeof() instead of hard-coded constant for buffer size.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>