radeonsi: don't check DCC compatibility on chips where it's no-op

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26095>

src/gallium/drivers/radeonsi/si_state.c

@@ -2869,6 +2869,7 @@ static void si_set_framebuffer_state(struct pipe_context *ctx,
    si_update_fb_dirtiness_after_rendering(sctx);
 
    /* Disable DCC if the formats are incompatible. */
+   if (sctx->gfx_level >= GFX8 && sctx->gfx_level < GFX11) {
       for (i = 0; i < state->nr_cbufs; i++) {
          if (!state->cbufs[i])
             continue;
@@ -2885,6 +2886,7 @@ static void si_set_framebuffer_state(struct pipe_context *ctx,
 
          surf->dcc_incompatible = false;
       }
+   }
 
    /* Only flush TC when changing the framebuffer state, because
     * the only client not using TC that can change textures is