netbpfload: simplify attach type related logic

(while at it remove the lwt_ program types, we don't use
 them, and since this is mainline code now, we can always
 add them back if we ever do need them)

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I0f8655bdf9ccf77688d987bcdcc0d741cb1a221c
1 file changed