Updates kvmx: 2a7d2f4 Fix: improved spice window handling

diff --git a/kvmx b/kvmx
index 2d6cf34747ed47e2fe8e30982d737d87113c972d..2a7d2f4443dc81e518bb25750574af2de296b6b2 160000 (submodule)
--- a/kvmx
+++ b/kvmx
@@ -1 +1 @@
-Subproject commit 2d6cf34747ed47e2fe8e30982d737d87113c972d
+Subproject commit 2a7d2f4443dc81e518bb25750574af2de296b6b2