tpm2-tss: test/unit/tctildr fails on s390x

Version 2.3.1 of tpm2-tss was recently uploaded into Debian unstable and this particular unit test is failing the test suite on the s390x architecture. It passes on other architectures.

[==========] Running 24 test(s).
[ RUN      ] tcti_from_init_null_init
[       OK ] tcti_from_init_null_init
[ RUN      ] tcti_from_init_init_fail
WARNING:tcti:src/tss2-tcti/tctildr.c:50:tcti_from_init() TCTI init for function 0x2aa2f6017c0 failed with 6134 
[       OK ] tcti_from_init_init_fail
[ RUN      ] tcti_from_init_calloc_fail
ERROR:tcti:src/tss2-tcti/tctildr.c:56:tcti_from_init() Memory allocation for tcti failed: Success 
[       OK ] tcti_from_init_calloc_fail
[ RUN      ] tcti_from_init_second_init_fail
WARNING:tcti:src/tss2-tcti/tctildr.c:62:tcti_from_init() TCTI init for function 0x2aa2f6017c0 failed with 6134 
[       OK ] tcti_from_init_second_init_fail
[ RUN      ] tcti_from_init_success
[       OK ] tcti_from_init_success
[ RUN      ] tcti_from_info_info_null
ERROR:tcti:src/tss2-tcti/tctildr.c:83:tcti_from_info() TCTI info function failed 
[       OK ] tcti_from_info_info_null
[ RUN      ] tcti_from_info_info_fail
WARNING:tcti:src/tss2-tcti/tctildr.c:50:tcti_from_init() TCTI init for function 0x2aa2f6017c0 failed with 6134 
WARNING:tcti:src/tss2-tcti/tctildr.c:92:tcti_from_info() Could not initialize TCTI named: (null) 
[       OK ] tcti_from_info_info_fail
[ RUN      ] tcti_from_info_success
[       OK ] tcti_from_info_success
[ RUN      ] test_conf_parse_null
ERROR:tcti:src/tss2-tcti/tctildr.c:122:tctildr_conf_parse() 'name_conf' param may NOT be NULL 
[       OK ] test_conf_parse_null
[ RUN      ] test_conf_parse_bad_length
[  ERROR   ] --- Test failed with exception: Segmentation fault(11)
[  FAILED  ] test_conf_parse_bad_length
[ RUN      ] test_conf_parse_empty_str
[       OK ] test_conf_parse_empty_str
[ RUN      ] test_conf_parse_no_colon
[       OK ] test_conf_parse_no_colon
[ RUN      ] test_conf_parse_name_colon
[       OK ] test_conf_parse_name_colon
[ RUN      ] test_conf_parse_name_colon_conf
[       OK ] test_conf_parse_name_colon_conf
[ RUN      ] tctildr_init_ex_null_test
[       OK ] tctildr_init_ex_null_test
[ RUN      ] tctildr_init_null_test
[       OK ] tctildr_init_null_test
[ RUN      ] tctildr_init_conf_fail_test
[  ERROR   ] --- Test failed with exception: Segmentation fault(11)
[  FAILED  ] tctildr_init_conf_fail_test
[ RUN      ] tctildr_init_ex_default_fail
ERROR:tcti:src/tss2-tcti/tctildr.c:418:Tss2_TctiLdr_Initialize_Ex() Failed to instantiate TCTI 
[       OK ] tctildr_init_ex_default_fail
[ RUN      ] tctildr_init_ex_from_file_fail
ERROR:tcti:src/tss2-tcti/tctildr.c:418:Tss2_TctiLdr_Initialize_Ex() Failed to instantiate TCTI 
[       OK ] tctildr_init_ex_from_file_fail
[ RUN      ] tctildr_init_ex_calloc_fail_test
[       OK ] tctildr_init_ex_calloc_fail_test
[ RUN      ] tctildr_init_ex_success_test
[       OK ] tctildr_init_ex_success_test
[ RUN      ] tctildr_finalize_null_ref_test
[       OK ] tctildr_finalize_null_ref_test
[ RUN      ] tctildr_finalize_null_ctx_test
[       OK ] tctildr_finalize_null_ctx_test
[ RUN      ] tctildr_finalize_test
[       OK ] tctildr_finalize_test
[==========] 24 test(s) run.
[  PASSED  ] 22 test(s).
[  FAILED  ] 2 test(s), listed below:
[  FAILED  ] test_conf_parse_bad_length
[  FAILED  ] tctildr_init_conf_fail_test

 2 FAILED TEST(S)
FAIL test/unit/tctildr (exit status: 2)

Full build log is available here: https://buildd.debian.org/status/fetch.php?pkg=tpm2-tss&arch=s390x&ver=2.3.1-1&stamp=1573411429&raw=0