media: nxp: imx8-isi: Use devm_clk_bulk_get_all() to fetch clocks

Use devm_clk_bulk_get_all() helper to simplify clock handle code.

No functional changes intended.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20250522-8qxp_camera-v5-4-d4be869fdb7e@nxp.com


Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>