vega: move ureg_destroy(ureg) after last use of ureg var

src/gallium/state_trackers/vega/shaders_cache.c

@@ -229,7 +229,6 @@ combine_shaders(const struct shader_asm_info *shaders[SHADER_STAGES], int num_sh
       return NULL;
 
    p = pipe->create_fs_state(pipe, shader);
-   ureg_destroy(ureg);
 
    if (num_temps >= 1) {
       for (i = start_temp; i < end_temp; i++) {
@@ -237,6 +236,8 @@ combine_shaders(const struct shader_asm_info *shaders[SHADER_STAGES], int num_sh
       }
    }
 
+   ureg_destroy(ureg);
+
    if (temp)
       free(temp);
    if (constant)