etnaviv: blt/rs: Just pass the color to the callee

Accessing the color with an index that will be in range of
[0..nr_cbus) is wrong. Just pass the clear color down to
the callee.

Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26565>

src/gallium/drivers/etnaviv/etnaviv_blt.c

@@ -371,7 +371,7 @@ etna_clear_blt(struct pipe_context *pctx, unsigned buffers, const struct pipe_sc
          struct etna_surface *surf = etna_surface(ctx->framebuffer_s.cbufs[idx]);
 
          etna_blit_clear_color_blt(pctx, ctx->framebuffer_s.cbufs[idx],
-                               &color[idx]);
+                               color);
 
          if (!etna_resource(surf->prsc)->explicit_flush)
             etna_context_add_flush_resource(ctx, surf->prsc);

src/gallium/drivers/etnaviv/etnaviv_rs.c

@@ -481,7 +481,7 @@ etna_clear_rs(struct pipe_context *pctx, unsigned buffers, const struct pipe_sci
          struct etna_surface *surf = etna_surface(ctx->framebuffer_s.cbufs[idx]);
 
          etna_blit_clear_color_rs(pctx, ctx->framebuffer_s.cbufs[idx],
-                               &color[idx]);
+                               color);
 
          if (!etna_resource(surf->prsc)->explicit_flush)
             etna_context_add_flush_resource(ctx, surf->prsc);