erasure-code: synchronize with upstream gf-complete

Fixes: http://tracker.ceph.com/issues/18092
Signed-off-by: Loic Dachary <loic@dachary.org>

diff --git a/src/erasure-code/jerasure/gf-complete b/src/erasure-code/jerasure/gf-complete
index c431e1ff76bdce6c3f6c0d0cbdf6a01c68f81071..d61b4d377a6a3f202de8a3541abf6383313adab7 160000 (submodule)
--- a/src/erasure-code/jerasure/gf-complete
+++ b/src/erasure-code/jerasure/gf-complete
@@ -1 +1 @@
-Subproject commit c431e1ff76bdce6c3f6c0d0cbdf6a01c68f81071
+Subproject commit d61b4d377a6a3f202de8a3541abf6383313adab7