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")
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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")