Added some KEYs under devinput for eventlircd.

Added some KEYs form eventlircd in OpenELEC under devinput.
Added KEY_RADIO as liveradio.

Currently OpenELEC uses a patch from Dharma to fix this KEYs themselves but I think it should be added to the default Lircmap.xml.
Then they can stop using the patch and get the updates from mainline as well...

I think eventlircd needs this to work properly to.

Maybe the KEYS from eventlircd should be changed to lircd standard KEY_ tags but it is quite some evmaps to change then. Maybe in the future...