Updates the Math submodule to 025a142.

stan-buildbot · stan-buildbot · commit 37fbc8fbfb55 · 2019-10-27T07:37:33.000-04:00
diff --git a/lib/stan_math b/lib/stan_math
@@ -1 +1 @@
-Subproject commit 6723f81778f3ba939a95908c70d1514bfd322713
+Subproject commit 025a142ec01b68e91adf339a9b86d67e6d0e20ee
