debian: Add libelf-dev dependency for dkms
Newer kernels define CONFIG_UNWINDER_ORC for their kernel configurations
and to build this the kernel compilation requires the libelf-dev
package.  Add the dependency to the dkms build requirements.
VMware-BZ:
@@ -41,7 +41,7 @@ Description: Open vSwitch datapath module source - module-assistant version
Package: openvswitch-datapath-dkms
Architecture: all
-Depends: dkms (>= 1.95), libc6-dev, make, ${misc:Depends}, ${python:Depends}
+Depends: dkms (>= 1.95), libc6-dev, libelf-dev, make, ${misc:Depends}, ${python:Depends}
Description: Open vSwitch datapath module source - DKMS version
Open vSwitch is a production quality, multilayer, software-based,
Ethernet virtual switch. It is designed to enable massive network
