Makefile: fix unaligned loads in sha1dc with UBSan

diff --git a/sha1collisiondetection b/sha1collisiondetection
index 232357eb2ea0397388254a4b188333a227bf5b10..16033998da4b273aebd92c84b1e1b12e4aaf7009 160000 (submodule)
--- a/sha1collisiondetection
+++ b/sha1collisiondetection
@@ -1 +1 @@
-Subproject commit 232357eb2ea0397388254a4b188333a227bf5b10
+Subproject commit 16033998da4b273aebd92c84b1e1b12e4aaf7009