net/(t|wire)shark-lite: Really fix them

error:
pkg-static: Unable to access file /construction/net/tshark-lite/stage/

usr/local/%%ANDROIDDUMP_LIB%%lib/wireshark/extcap/androiddump:
No such file or directory

pkg-static: Unable to access file /construction/net/tshark-lite/stage/

usr/local/%%RANDPKTDUMP_LIB%%lib/wireshark/extcap/randpktdump:
No such file or directory

The PLIST_SUBs weren't defined.

Approved by: just-fix-it