Add RPI 3b arch

[Macleykun]

Add's "support" for https://github.com/powenn/AltServer-Linux-ShellScript/issues/44

[powenn]

Does netmuxd support this arch?

[Macleykun]

Yus: https://github.com/jkcoxson/netmuxd/releases/download/v0.1.4/armv7-linux-netmuxd proof: https://github.com/powenn/AltServer-Linux-ShellScript/issues/44#issuecomment-1288513970

Technically he could refresh with netmuxd but just not successfully. But it does run which is important. However I do now realize armv7 release should be fetched for armv71/l.

[Macleykun]

um, heya i'm not sure if you should've just merged withoud making any adjustsments...

https://github.com/NyaMisty/AltServer-Linux/releases/download/v0.0.5/AltServer-armv7l doesn't work but we have to allow armv7l but download: https://github.com/NyaMisty/AltServer-Linux/releases/download/v0.0.5/AltServer-armv7 (and i think it's wiser to make an adjustment on our side, then on netmuxd and altserver)

[Macleykun]

i have an idea, i'll submit just another one

[powenn]

I forgot to check is there existing AltServer Linux release for armv71