kx122: Disable implicit copy/assignment operators

Don't let a KX122 instance be copied since copies would share the C
device pointer.

Signed-off-by: Noel Eck <noel.eck@intel.com>

src/kx122/kx122.hpp

@@ -510,5 +510,9 @@ namespace upm{
     private:
       //Device context
       kx122_context m_kx122;
+
+      /* Disable implicit copy and assignment operators */
+      KX122(const KX122&) = delete;
+      KX122 &operator=(const KX122&) = delete;
   };
 }