options: move ioprio/ioprio_class into thread_options space

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/thread_options.h b/thread_options.h
index 5a296c7..4b5f957 100644
--- a/thread_options.h
+++ b/thread_options.h
@@ -141,6 +141,8 @@
 	unsigned int rwmixcycle;
 	unsigned int rwmix[2];
 	unsigned int nice;
+	unsigned int ioprio;
+	unsigned int ioprio_class;
 	unsigned int file_service_type;
 	unsigned int group_reporting;
 	unsigned int fadvise_hint;
@@ -326,6 +328,8 @@
 	uint32_t rwmixcycle;
 	uint32_t rwmix[2];
 	uint32_t nice;
+	uint32_t ioprio;
+	uint32_t ioprio_class;
 	uint32_t file_service_type;
 	uint32_t group_reporting;
 	uint32_t fadvise_hint;