Fix warning: no previous prototype for ... [-Wmissing-prototypes]

Change-Id: Idd1cf83809877d12b18362e722c6c37251b02495
Reviewed-on: https://code.wireshark.org/review/3634
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Fix warning: no previous prototype for ... [-Wmissing-prototypes]

Change-Id: I9dfff8032e8aa4634466fb4cb3b136ff6df1c4b7
Reviewed-on: https://code.wireshark.org/review/3635
Reviewed-by: Anders Broman <a.broman58@gmail.com>