staging: lustre: convert last typedef data types in hash.c

Change the last typedef data types cfs_hash_lookup_intent_t
to enum and cfs_hash_cond_arg_t to a structure.

Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>