Add entries in cc_toolchain_suites so cc_toolchain label selection doesn't depend on the CROSSTOOL file.

Work towards issue #5380

RELNOTES: None.
PiperOrigin-RevId: 211771190
diff --git a/tools/cpp/BUILD.static.freebsd b/tools/cpp/BUILD.static.freebsd
index b79e871..c27ae4e 100644
--- a/tools/cpp/BUILD.static.freebsd
+++ b/tools/cpp/BUILD.static.freebsd
@@ -35,6 +35,8 @@
     toolchains = {
         "armeabi-v7a|compiler": ":cc-compiler-armeabi-v7a",
         "freebsd|compiler": ":cc-compiler-freebsd",
+        "armeabi-v7a": ":cc-compiler-armeabi-v7a",
+        "freebsd": ":cc-compiler-freebsd",
     },
 )