Update xvm-prodconfig to version 1.1.54

Requested by glasgall/root@ATHENA.MIT.EDU

diff --git a/xvm-prodconfig b/xvm-prodconfig
index c5bdc15..bc1290e 160000 (submodule)
--- a/xvm-prodconfig
+++ b/xvm-prodconfig
@@ -1 +1 @@
-Subproject commit c5bdc15e0911baaa88c69011a9b1d7d4a2350d70
+Subproject commit bc1290e7f3f0a4cd3aac5017745840a386338541