Fix broken 'norandommap'

commit 8055e41d broke the option, always falling through to
the failure case.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

filesetup.c

diff --git a/filesetup.c b/filesetup.c
index 4fe37ae..9fb325b 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -924,7 +924,8 @@
 			f->io_axmap = axmap_new(blocks);
 			if (f->io_axmap)
 				continue;
-		}
+		} else if (td->o.norandommap)
+			continue;
 
 		if (!td->o.softrandommap) {
 			log_err("fio: failed allocating random map. If running"