Updates kvmx: 526a65d Test swapfile presence at kvmx_hibernate

diff --git a/kvmx b/kvmx
index 6e33f067d1e8f3d98544f3bafc0808b84d3eb296..526a65dd956cb953950141c11040e7df9ad740a5 160000 (submodule)
--- a/kvmx
+++ b/kvmx
@@ -1 +1 @@
-Subproject commit 6e33f067d1e8f3d98544f3bafc0808b84d3eb296
+Subproject commit 526a65dd956cb953950141c11040e7df9ad740a5