[OE-core] Stable maintainer for fido

[Richard Purdie]

With the release imminent, we need a stable maintainer for fido. Joshua
Lock has kindly volunteered to do this. He has been away from the
project for a while but many will remember his previous work. He is now
back and involved and I believe he will do a great job with this.

Thanks for stepping forward to help!

Cheers,

Richard