[DEV] Fix some types
[DEV] Fix some types

Change-Id: Iad92d61f58f1456bff0f5fa642763a18357583ff
Reviewed-on: https://gerrit.parrot.biz/23327
Reviewed-by: Nicolas Brulez <c7b4d7ddc34318e865922d5ddc9ce680dfb1b14c@parrot.com>

Parrot-Developers/libARDiscovery,Parrot-Developers/libARDiscovery,Parrot-Developers/libARDiscovery,Parrot-Developers/libARDiscovery