vmm: seccomp: Remove unreachable patterns

Make HypervisorType enum's members conditional on build time features.

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

hypervisor/src/lib.rs

@@ -61,7 +61,9 @@ pub use vm::{
 
 #[derive(Debug, Copy, Clone)]
 pub enum HypervisorType {
+    #[cfg(feature = "kvm")]
     Kvm,
+    #[cfg(feature = "mshv")]
     Mshv,
 }