panfrost: Fix border colour
The border colour was being set to the red colour for all channels. Fixes tex-border-1 from piglit.
Fixes: f74186ba ("panfrost: XMLify Midgard samplers")
The border colour was being set to the red colour for all channels. Fixes tex-border-1 from piglit.
Fixes: f74186ba ("panfrost: XMLify Midgard samplers")