media: platform: rzg2l-cru: rzg2l-csi2: Add missing MODULE_DEVICE_TABLE

media: platform: rzg2l-cru: rzg2l-csi2: Add missing MODULE_DEVICE_TABLE

The rzg2l-csi2 driver can be compiled as a module, but lacks
MODULE_DEVICE_TABLE() and will therefore not be loaded automatically.
Fix this.

Fixes: 51e8415e39a9 ("media: platform: Add Renesas RZ/G2L MIPI CSI-2 receiver driver")
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20240731164935.308994-1-biju.das.jz@bp.renesas.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>