[gn] port a14a83d

Author: nico

llvm/utils/gn/secondary/compiler-rt/test/BUILD.gn

@@ -53,6 +53,7 @@ write_cmake_config("lit_common_configured") {
     "COMPILER_RT_BUILD_STANDALONE_LIBATOMIC_PYBOOL=False",
     "COMPILER_RT_DEBUG_PYBOOL=False",
     "COMPILER_RT_ENABLE_INTERNAL_SYMBOLIZER_PYBOOL=False",
+    "COMPILER_RT_HAS_NO_DEFAULT_CONFIG_FLAG_PYBOOL=True",
     "COMPILER_RT_INTERCEPT_LIBDISPATCH_PYBOOL=False",
     "COMPILER_RT_RESOLVED_LIBRARY_OUTPUT_DIR=" +
         rebase_path(crt_current_out_dir),