Updates kvmx: ff3e09c Run xrandr only if spice client is in use

diff --git a/kvmx b/kvmx
index 53e5bf91034872c35baa5abc7831daaa58d03745..ff3e09ca5e3d37406757013dad2fcbdebc80eca7 160000 (submodule)
--- a/kvmx
+++ b/kvmx
@@ -1 +1 @@
-Subproject commit 53e5bf91034872c35baa5abc7831daaa58d03745
+Subproject commit ff3e09ca5e3d37406757013dad2fcbdebc80eca7