Rollup merge of rust-lang#51695 - est31:stdsimd_update, r=kennytm

GuillaumeGomez · web-flow · commit eb981cfe5841 · 2018-06-25T18:02:14.000+02:00
Update stdsimd Closes rust-lang#51691
diff --git a/src/stdsimd b/src/stdsimd
@@ -1 +1 @@
-Subproject commit a19ca1cd91cf97777af8268a6136bd2e4648e189
+Subproject commit fd3a3f248156c24a40baaf9824c03ef8dce00163
