[media] sta2x11_vip: Fix 60Hz video standard handling

This device supports V4L2_STD_ALL, but its check for 60Hz standards
is broken, as NTSC is not the only standard that uses 60Hz.

Cc: Federico Vaga <federico.vaga@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>