update stdsimd

diff --git a/src/stdsimd b/src/stdsimd
index b23541340b5941749e5fbb1930e666bbd1375244..c546604f74eba6a7b423d98d3ab0abe9a2e56897 160000 (submodule)
--- a/src/stdsimd
+++ b/src/stdsimd
@@ -1 +1 @@
-Subproject commit b23541340b5941749e5fbb1930e666bbd1375244
+Subproject commit c546604f74eba6a7b423d98d3ab0abe9a2e56897