media: rc-core: fix toggle handling in the rc6 decoder

commit d2a74581 upstream.

The toggle bit shouldn't be cleared before the toggle value is calculated.

This should probably go into 3.17.x as well.

Fixes: 120703f9 ([media] rc-core: document the protocol type)

Tested-by: Stephan Raue <mailinglists@openelec.tv>
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>