misc: Bulk upgrade dependencies

In particular update for the vmm-sys-util upgrade and all the other
dependent packages. This requires an updated forked version of
kvm-bindings (due to updated vfio-ioctls) but allowed the removal of our
forked version of kvm-ioctls.

The changes to the API from kvm-ioctls and vmm-sys-util required some
other minor changes to the code.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

hypervisor/src/kvm/x86_64/mod.rs

@@ -111,6 +111,7 @@ pub fn boot_msr_entries() -> MsrEntries {
         ),
         msr_data!(msr_index::MSR_MTRRdefType, MTRR_ENABLE | MTRR_MEM_TYPE_WB),
     ])
+    .unwrap()
 }
 
 ///