Bump dxcommon to get curses configure fixes.

diff --git a/common b/common
index aaaacebf1f04c364803f308c3b3e9670e216da09..46584b6d3efed53bbedc697f26b4d0841dfda9fc 160000 (submodule)
--- a/common
+++ b/common
@@ -1 +1 @@
-Subproject commit aaaacebf1f04c364803f308c3b3e9670e216da09
+Subproject commit 46584b6d3efed53bbedc697f26b4d0841dfda9fc