V4L/DVB (5246): Budget-ci: IR handling fixups

V4L/DVB (5246): Budget-ci: IR handling fixups

Commit 00c4cc67512ada1d195b8bf3ef1db1d6b3951605 Oliver Endriss changed
the budget-ci driver to use interrupt mode for i2c transfers.

This also meant that a new bunch of IR bytes that were previously lost
are now received, which allowed me to better understand how the MSP430
chip works. Unfortunately it also means that the current driver gets
some assumptions wrong and might generate double keypresses for one IR
command.

The attached patch fixes this by throwing away the repeat bytes and by
associating the correct command and device bytes.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>