Merge "gatekeeperd_service_fuzzer: Add signal() to handle SIGPIPE" into main

using android::GateKeeperProxy;

extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {

    // TODO(b/183141167): need to rewrite 'dump' to avoid SIGPIPE.

    signal(SIGPIPE, SIG_IGN);

    auto gatekeeperService = new GateKeeperProxy();

    fuzzService(gatekeeperService, FuzzedDataProvider(data, size));

    return 0;