MIPS: Alchemy: Hook up IrDA on DB1000/DB1100

Add necessary transceiver control platform data and hook up the
IrDA peripheral on the DB1000 and DB1100 boards.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2878/


Signed-off-by: Ralf Baechle <ralf@linux-mips.org>