media: Correct 'so'

In Kconfig it should be 'to'
In c8sectpfe-core.c it should be 'do'

Signed-off-by: Xiaofeng Cao <cxfcosmos@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>