[media] solo6x10: update GOP size, QP immediately

Previously, it was needed to reopen device to update GOP size and
quantization parameter. Now we update device registers with new values
immediately.

Signed-off-by: Andrey Utkin <andrey.utkin@corp.bluecherry.net>
Signed-off-by: Ismael Luceno <ismael.luceno@corp.bluecherry.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>