Update xvm-prodconfig to version 1.1.52

Requested by dvorak42/root@ATHENA.MIT.EDU

diff --git a/xvm-prodconfig b/xvm-prodconfig
index bc54920..27b5acb 160000 (submodule)
--- a/xvm-prodconfig
+++ b/xvm-prodconfig
@@ -1 +1 @@
-Subproject commit bc54920800b106e5d3c967565a53278fa8da0c45
+Subproject commit 27b5acb8fd5e6b695a06754788dec2eb2054cf4d