media: rzg2l-cru: Inline calculating bytesperline

media: rzg2l-cru: Inline calculating bytesperline

Remove the `rzg2l_cru_format_bytesperline()` function and inline the
calculation of `bytesperline` directly in `rzg2l_cru_format_align()`.
This simplifies the code by removing an unnecessary function call and
directly multiplying the image width by the `bpp` (bytes per pixel)
from the format structure.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20241018133446.223516-15-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>