staging: lustre: o2iblnd: use bool assignment to true/false

Replace 0 with false in tx_pages_mapped = 0 to be consistent with
the rest of the lustre code.

Signed-off-by: Nicholas Hanley <nicholasjhanley@gmail.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c

@@ -1637,7 +1637,7 @@ int kiblnd_fmr_pool_map(struct kib_fmr_poolset *fps, struct kib_tx *tx,
 {
 	__u64 *pages = tx->tx_pages;
 	bool is_rx = (rd != tx->tx_rd);
-	bool tx_pages_mapped = 0;
+	bool tx_pages_mapped = false;
 	struct kib_fmr_pool *fpo;
 	int npages = 0;
 	__u64 version;