radv: disable prediction only if it has been enabled

When decompressing DCC we don't enable it, so it's useless
to disable it. This reduces the number of prediction packets
sent to the GPU when performing color decompression passes.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Niuwenhuizen <bas@basnieuwenhuizen.nl>

src/amd/vulkan/radv_meta_fast_clear.c

@@ -667,7 +667,7 @@ radv_emit_color_decompress(struct radv_cmd_buffer *cmd_buffer,
 					&cmd_buffer->pool->alloc);
 
 	}
-	if (radv_image_has_dcc(image)) {
+	if (!decompress_dcc && radv_image_has_dcc(image)) {
 		cmd_buffer->state.predicating = false;
 		radv_emit_set_predication_state_from_image(cmd_buffer, image, false);
 	}