ncpfs/inode.c: fix mismatch printk formats and arguments

Conversions to ncp_dbg showed some format/argument mismatches so fix
them.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Petr Vandrovec <petr@vandrovec.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>