Enable support for fused ReLU activation on Conv2D and DepthwiseConv2D operations. Reviewed-by: Tomeu Vizoso <tomeu@tomeuvizoso.net> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31981>