[Net] Fix ENet 'connect_to_host' creating only one channel.
[Net] Fix ENet 'connect_to_host' creating only one channel.

Passing `0` to `enet_host_create` will allow the maximum amount of
channel supported by ENet. For some reasons, `connect_to_host` will
instead only create 1 channel when passed `0`.
This commit normalize the behaviour to always allocate the maximum
allowed channels when passing `0`.

godotengine/godot,ZuBsPaCe/godot,Shockblast/godot,guilhermefelipecgs/godot,godotengine/godot,Shockblast/godot,Shockblast/godot,josempans/godot,vkbsb/godot,pkowal1982/godot,DmitriySalnikov/godot,honix/godot,Valentactive/godot,vnen/godot,Valentactive/godot,ZuBsPaCe/godot,sanikoyes/godot,Shockblast/godot,DmitriySalnikov/godot,Faless/godot,firefly2442/godot,Zylann/godot,pkowal1982/godot,Faless/godot,vkbsb/godot,sanikoyes/godot,DmitriySalnikov/godot,ZuBsPaCe/godot,BastiaanOlij/godot,DmitriySalnikov/godot,Zylann/godot,godotengine/godot,Zylann/godot,josempans/godot,Zylann/godot,godotengine/godot,josempans/godot,godotengine/godot,sanikoyes/godot,pkowal1982/godot,guilhermefelipecgs/godot,BastiaanOlij/godot,vkbsb/godot,vnen/godot,akien-mga/godot,sanikoyes/godot,Zylann/godot,guilhermefelipecgs/godot,vkbsb/godot,pkowal1982/godot,firefly2442/godot,Zylann/godot,Valentactive/godot,Zylann/godot,Valentactive/godot,sanikoyes/godot,firefly2442/godot,guilhermefelipecgs/godot,vnen/godot,BastiaanOlij/godot,sanikoyes/godot,vkbsb/godot,godotengine/godot,josempans/godot,pkowal1982/godot,Valentactive/godot,josempans/godot,ZuBsPaCe/godot,Faless/godot,sanikoyes/godot,pkowal1982/godot,pkowal1982/godot,vnen/godot,BastiaanOlij/godot,DmitriySalnikov/godot,akien-mga/godot,josempans/godot,Shockblast/godot,vnen/godot,akien-mga/godot,ZuBsPaCe/godot,vkbsb/godot,pkowal1982/godot,honix/godot,Faless/godot,Shockblast/godot,josempans/godot,godotengine/godot,vnen/godot,firefly2442/godot,godotengine/godot,guilhermefelipecgs/godot,Valentactive/godot,firefly2442/godot,BastiaanOlij/godot,BastiaanOlij/godot,Zylann/godot,vnen/godot,Faless/godot,guilhermefelipecgs/godot,ZuBsPaCe/godot,akien-mga/godot,vkbsb/godot,akien-mga/godot,DmitriySalnikov/godot,honix/godot,honix/godot,Valentactive/godot,Faless/godot,Shockblast/godot,josempans/godot,akien-mga/godot,vnen/godot,ZuBsPaCe/godot,ZuBsPaCe/godot,firefly2442/godot,BastiaanOlij/godot,DmitriySalnikov/godot,vkbsb/godot,honix/godot,sanikoyes/godot,Faless/godot,guilhermefelipecgs/godot,Valentactive/godot,Faless/godot,firefly2442/godot,firefly2442/godot,akien-mga/godot,guilhermefelipecgs/godot,honix/godot,akien-mga/godot,BastiaanOlij/godot,Shockblast/godot