Rename the file names so that pinephonepro is more clearly distinguished from pinephone

[tckosvic]

Small item but I did download a pinephone file instead of needed pinephonepro file. Suggest "_pro" or "-pro".

Save other from making same mistake.

tom kosvic

[Strit]

While this might seem like a small change, it would require changes in our profiles, tools, website and CI scripts, just for this.