This partly reverts commit 078600f5.

Due to the relocation of input_register_device() call, holding down a
button on an IR remote no longer resulted in repeated key down events.
Signed-off-by: NOle Ernst <olebowle@gmx.com>
Tested-by: NMatthias Reichl <hias@horus.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>