intel: Load the driver even if I915_PARAM_REVISION is not found.
This param is only available starting on kernel 4.16. Use a default value of 0 if it is not found instead.
Cc: Jordan Justen jordan.l.justen@intel.com Cc: Mark Janes mark.a.janes@intel.com Fixes: 96e1c945 ("i965: Move device info initialization to common Reviewed-by: Lionel Landwerlin lionel.g.landwerlin@intel.com