Refactor tdx measurement by parsing the rom #769

Job	Run time
build_attest_all (buildconfigs/key_xor_test_app.sh)	42m 21s
build_attest_all (buildconfigs/oak_client_android_app.sh)	48m 55s
build_attest_all (buildconfigs/oak_containers_agent.sh)	36m 32s
build_attest_all (buildconfigs/oak_containers_kernel.sh)	34m 21s
build_attest_all (buildconfigs/oak_containers_orchestrator.sh)	50m 43s
build_attest_all (buildconfigs/oak_containers_stage1.sh)	48m 28s
build_attest_all (buildconfigs/oak_containers_syslogd.sh)	48m 53s
build_attest_all (buildconfigs/oak_containers_system_image.sh)	48m 30s
build_attest_all (buildconfigs/oak_containers_nvidia_system_image.sh)	52m 30s
build_attest_all (buildconfigs/oak_echo_enclave_app.sh)	42m 5s
build_attest_all (buildconfigs/oak_echo_raw_enclave_app.sh)	41m 29s
build_attest_all (buildconfigs/oak_functions_enclave_app.sh)	41m 47s
build_attest_all (buildconfigs/oak_functions_insecure_enclave_app.sh)	40m 32s
build_attest_all (buildconfigs/oak_orchestrator.sh)	41m 4s
build_attest_all (buildconfigs/oak_restricted_kernel_simple_io_init_rd_wrapper_bin.sh)	42m 19s
build_attest_all (buildconfigs/stage0_bin.sh)	41m 8s
build_attest_all (buildconfigs/stage0_bin_tdx.sh)	41m 46s
	12h 23m 23s

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