TT#28953 Do not depend on ngcp-intel-i40e-dkms if linux kernel is recent enough

On Debian/buster we don't need ngcp-intel-i40e-dkms,
so if linux-image-amd64 >= 4.17 is present then
don't depend on ngcp-intel-i40e-dkms.

Change-Id: Ia406c7807c66566f06d3e86aa821641301e2f750

debian/control

@@ -184,7 +184,7 @@ Depends:
  man-db,
  nano,
  ngcp-bulk-processor,
- ngcp-intel-i40e-dkms,
+ ngcp-intel-i40e-dkms | linux-image-amd64 (>= 4.17),
  ngcp-inventory,
  ngcp-klish-config,
  ngrep-sip,
@@ -240,7 +240,7 @@ Depends:
  nano,
  ngcp-bulk-processor,
  ngcp-deployment-scripts,
- ngcp-intel-i40e-dkms,
+ ngcp-intel-i40e-dkms | linux-image-amd64 (>= 4.17),
  ngcp-klish-config,
  ngrep-sip,
  pciutils,