Updates kvmx: b6410cc Doc: using with existing or manually created guests

diff --git a/kvmx b/kvmx
index 9cc1157bf5109383f927ade330900b2b3cb51b64..b6410cce7d2e429addaf4cc6a4a2da10173abfad 160000 (submodule)
--- a/kvmx
+++ b/kvmx
@@ -1 +1 @@
-Subproject commit 9cc1157bf5109383f927ade330900b2b3cb51b64
+Subproject commit b6410cce7d2e429addaf4cc6a4a2da10173abfad