bazel/tools: add ar_files/as_files to cc_toolchain targets

This is a step toward making the ar_files/as_files attributes
mandatory.

RELNOTES: None.
PiperOrigin-RevId: 224181331
diff --git a/tools/cpp/BUILD.static.freebsd b/tools/cpp/BUILD.static.freebsd
index 7fed316..eef7919 100644
--- a/tools/cpp/BUILD.static.freebsd
+++ b/tools/cpp/BUILD.static.freebsd
@@ -44,6 +44,8 @@
     name = "cc-compiler-freebsd",
     toolchain_identifier = "local_freebsd",
     all_files = ":empty",
+    ar_files = ":empty",
+    as_files = ":empty",
     compiler_files = ":empty",
     cpu = "local",
     dwp_files = ":empty",
@@ -73,6 +75,8 @@
     name = "cc-compiler-armeabi-v7a",
     toolchain_identifier = "stub_armeabi-v7a",
     all_files = ":empty",
+    ar_files = ":empty",
+    as_files = ":empty",
     compiler_files = ":empty",
     cpu = "local",
     dwp_files = ":empty",