Always add vsock device with Oak Containers, and default to it in stage1 #77

Job	Run time
build_attest_all (buildconfigs/key_xor_test_app.sh)	2m 25s
build_attest_all (buildconfigs/oak_containers_kernel.sh)	25m 21s
build_attest_all (buildconfigs/oak_containers_orchestrator.sh)	5m 13s
build_attest_all (buildconfigs/oak_containers_stage1.sh)	3m 41s
build_attest_all (buildconfigs/oak_containers_syslogd.sh)	4m 52s
build_attest_all (buildconfigs/oak_containers_agent.sh)	3m 20s
build_attest_all (buildconfigs/oak_containers_system_image.sh)	11m 5s
build_attest_all (buildconfigs/oak_echo_enclave_app.sh)	2m 16s
build_attest_all (buildconfigs/oak_echo_raw_enclave_app.sh)	2m 12s
build_attest_all (buildconfigs/oak_functions_enclave_app.sh)	2m 20s
build_attest_all (buildconfigs/oak_functions_insecure_enclave_app.sh)	2m 21s
build_attest_all (buildconfigs/oak_orchestrator.sh)	2m 12s
build_attest_all (buildconfigs/oak_restricted_kernel_simple_io_init_rd_wrapper_bin.sh)	2m 46s
build_attest_all (buildconfigs/stage0_bin.sh)	2m 35s
	1h 12m 39s

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