radeonsi: Also export clip distances with geometry shader

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 227d682..7718e91 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -2541,6 +2541,7 @@
 	if (si_shader_ctx.type == TGSI_PROCESSOR_GEOMETRY) {
 		shader->gs_copy_shader = CALLOC_STRUCT(si_pipe_shader);
 		shader->gs_copy_shader->selector = shader->selector;
+		shader->gs_copy_shader->key = shader->key;
 		si_shader_ctx.shader = shader->gs_copy_shader;
 		if ((r = si_generate_gs_copy_shader(sctx, &si_shader_ctx, dump))) {
 			free(shader->gs_copy_shader);