media: ti-vpe: cal: set field always to V4L2_FIELD_NONE

commit 518a6edeee5a0e0e4effdb3056299bb1421245ab from
git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git



cal_camerarx_sd_set_fmt() accepts any value for the format field, but
there should be no reason to have any other value accepted than
V4L2_FIELD_NONE. So set the field always to V4L2_FIELD_NONE.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Xulin Sun <xulin.sun@windriver.com>