Update stdsimd submodule

GuillaumeGomez · GuillaumeGomez · commit 2d266e1d11d0 · 2018-04-19T23:47:28.000+02:00
diff --git a/src/stdsimd b/src/stdsimd
@@ -1 +1 @@
-Subproject commit effdcd0132d17b6c4badc67b4b6d3fdf749a2d22
+Subproject commit 1ea18a5cb431e24aa838b652ac305acc5e394d6b
