Host toolchain minimal features

Test Plan: Tested with QEMU and the existing codebase.

X-Origin-Diff: phab/D713
GitOrigin-RevId: ecfc94ab2b4880447c628fc2e41b5ed6234f90d8
diff --git a/build/toolchain/musl-host-gcc/BUILD b/build/toolchain/musl-host-gcc/BUILD
index 561e311..656bb45 100644
--- a/build/toolchain/musl-host-gcc/BUILD
+++ b/build/toolchain/musl-host-gcc/BUILD
@@ -31,7 +31,9 @@
 host_cc_toolchain_config(
     name = "musl_host_cc_k8_toolchain_config",
     gcc = "gcc-wrapper.sh",
+    has_cpp = False,
     host_includes = [],
+    is_glibc = False,
     sysroot = "external/musl_sysroot",
 )