stage0_tdx org: Extract serial code to module #603

Job	Run time
build_attest_all (buildconfigs/key_xor_test_app.sh)	17m 39s
build_attest_all (buildconfigs/oak_client_android_app.sh)	51m 39s
build_attest_all (buildconfigs/oak_containers_agent.sh)	9m 51s
build_attest_all (buildconfigs/oak_containers_kernel.sh)	31m 29s
build_attest_all (buildconfigs/oak_containers_orchestrator.sh)	25m 0s
build_attest_all (buildconfigs/oak_containers_stage1.sh)	22m 19s
build_attest_all (buildconfigs/oak_containers_syslogd.sh)	23m 45s
build_attest_all (buildconfigs/oak_containers_system_image.sh)	32m 37s
build_attest_all (buildconfigs/oak_containers_nvidia_system_image.sh)	33m 8s
build_attest_all (buildconfigs/oak_echo_enclave_app.sh)	7m 25s
build_attest_all (buildconfigs/oak_echo_raw_enclave_app.sh)	5m 14s
build_attest_all (buildconfigs/oak_functions_enclave_app.sh)	6m 22s
build_attest_all (buildconfigs/oak_functions_insecure_enclave_app.sh)	5m 57s
build_attest_all (buildconfigs/oak_orchestrator.sh)	5m 28s
build_attest_all (buildconfigs/oak_restricted_kernel_simple_io_init_rd_wrapper_bin.sh)	42m 3s
build_attest_all (buildconfigs/stage0_bin.sh)	40m 30s
build_attest_all (buildconfigs/stage0_bin_tdx.sh)	42m 49s
	6h 43m 15s

Provide feedback