Update sdl2-mixer for android builds
authoradvil <rawlins@gmail.com>
Sun, 18 Apr 2021 21:56:07 +0000 (17:56 -0400)
committeradvil <rawlins@gmail.com>
Mon, 3 May 2021 19:23:26 +0000 (15:23 -0400)
Per #1892.

crawl-ref/source/contrib/sdl2-mixer

index 16dbc95..d1094a5 160000 (submodule)
@@ -1 +1 @@
-Subproject commit 16dbc95d9dd0ee3c8928abb3a62d910c386dc44f
+Subproject commit d1094a5bb5877ea3f1bdc0e92e574d42a653fb46