Radio :r and :l fixes and feature.

If you have a hand held radio in your right hand and use :r it will send through it.
If you have a radio on both ears and no radio in your hand and use :r it will use the right side ear radio.

Priority is given to the radio in the hand over the ear but this fix should make both side happy, those that want it to be ears and those tht want it to be hand helds.
Merge pull request #4846 from Ccomp5950/ear_fix

Radio :r and :l fixes and feature.