orangefs: add missing param request ops

Signed-off-by: Martin Brandenburg <martin@omnibond.com>

fs/orangefs/upcall.h

@@ -179,6 +179,9 @@ enum orangefs_param_request_op {
 	ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_SOFT_LIMIT = 23,
 	ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_RECLAIM_PERCENTAGE = 24,
 	ORANGEFS_PARAM_REQUEST_OP_TWO_MASK_VALUES = 25,
+	ORANGEFS_PARAM_REQUEST_OP_READAHEAD_SIZE = 26,
+	ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT = 27,
+	ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE = 28,
 };
 
 struct orangefs_param_request_s {