Update xvm-prodconfig to version 1.1.47

Requested by dvorak42/root@ATHENA.MIT.EDU

diff --git a/xvm-prodconfig b/xvm-prodconfig
index 3e9e374..7694ef6 160000 (submodule)
--- a/xvm-prodconfig
+++ b/xvm-prodconfig
@@ -1 +1 @@
-Subproject commit 3e9e3747b3668290b77b9275c9ea3fb4f910c1c1
+Subproject commit 7694ef6222d1b016c25c3ad0b7e2e2d29f698197