TT#34358 Depend on lsb-release in ngcp-rtpengine-kernel-dkms package

Debian relies on the output of lsb-release in dkms, while
it doesn't strictly depend on it (it's just a Recommends).
We reported the bug towards dkms in Debian as
https://bugs.debian.org/896814

The best we can do until the underlying bug in dkms is fixed
is to depend on the lsb-release package in our ngcp-rtpengine-kernel-dkms
itself.

Change-Id: I2946b971ff463cec8f6e198b4a618ed0e056534c
Thanks: Richard Fuchs for debugging the issue

debian/control

@@ -113,6 +113,7 @@ Suggests:
  ngcp-system-tools,
 Depends:
  dkms (>= 1.95),
+ lsb-release,
  ${misc:Depends},
 Conflicts:
  ngcp-mediaproxy-ng-kernel-dkms,