kmsro: Add support for V3D.

Like vc4, we expect to have SOCs with various displays that have a single
V3D instance for rendering.

v2: Add v3d to the list of drivers that make enabling kmsro valid.

Acked-by: Rob Clark <robdclark@chromium.org>
diff --git a/meson.build b/meson.build
index 0e8aa25..58d3837 100644
--- a/meson.build
+++ b/meson.build
@@ -217,7 +217,7 @@
 if with_dri_i915 and with_gallium_i915
   error('Only one i915 provider can be built')
 endif
-if with_gallium_kmsro and not (with_gallium_vc4 or with_gallium_etnaviv or with_gallium_freedreno or with_gallium_panfrost or with_gallium_lima)
+if with_gallium_kmsro and not (with_gallium_v3d or with_gallium_vc4 or with_gallium_etnaviv or with_gallium_freedreno or with_gallium_panfrost or with_gallium_lima)
   error('kmsro driver requires one or more renderonly drivers (vc4, etnaviv, freedreno, panfrost, lima)')
 endif
 if with_gallium_tegra and not with_gallium_nouveau