audio/effect/all-versions/legacy/Android.bp

cc_library_headers {
    name: "android.hardware.audio.effect.legacy@all-versions",
    vendor: true,
    export_include_dirs: ["include"],
    header_libs: [
        "android.hardware.audio.common.legacy@all-versions",
    ],
    export_header_lib_headers: [
        "android.hardware.audio.common.legacy@all-versions",
    ],
}