[media] frontends/s5h1420: Change: clock_settting to clock_setting

Changes clock_settting to clock_setting.

Note: This could be intentionally set this way from the beginning and/or
is a typo.

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>