wireshark: needs the qt5tools lrelease utility

Fixes:
http://autobuild.buildroot.net/results/0a4/0a4ccf752ed1e81e2416d33a78984b47087f68bd/
http://autobuild.buildroot.net/results/196/196b96e28a2cd5983a58948df4a2c3eb3bccdfa4/
http://autobuild.buildroot.net/results/056/056b3299ce45552fe3e7cbf5aa68b223f8fa458e/



Cc: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>