ARM: dts: iwg22d-sodimm: Add can0 support to carrier board

This patch enables CAN0 interface exposed through connector J15 on the
carrier board.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>