[Elecraft] K2 AGC mod

[VR2BrettGraham]

I'd previously credited LA3ZA with the AGC image mod.

That should go to TF3MA.

Cheers to LA3ZA for gathering up the myriad of K2 mods together
in one well organized place, though!

73 & HNY/HLNY, VR2BrettGraham