posix_apis:mimxrt685_evk_cm33 timeout in test_posix_realtime

[hakehuang]

Describe the bug
posix related cases hangs when run
test_posix_realtime

To Reproduce
Steps to reproduce the behavior:

1. mkdir build; cd build
2. cmake -DBOARD=mimxrt685_evk_cm33
3. make
4. make flash

Expected behavior
test pass

Impact
no clear.

Logs and console output

Running test suite posix_apis
===================================================================
START - test_posix_pthread_execution
Thread 0 starting with scheduling policy 0 & priority 15
Thread 1 starting with scheduling policy 0 & priority 15
Thread 2 starting with scheduling policy 0 & priority 15
Bounce test OK
Barrier test OK
PASS - test_posix_pthread_execution in 0.718 seconds
===================================================================
START - test_posix_pthread_error_condition
PASS - test_posix_pthread_error_condition in 0.1 seconds
===================================================================
START - test_posix_pthread_termination
Thread 0 starting with a priority of 4
Cancelling thread 0
Thread 1 starting with a priority of 3
Cancelling thread 1
Thread 1 could not be cancelled
Thread 2 starting with a priority of 2
Cancelling thread 2
Thread 3 starting with a priority of 1
Cancelling thread 3
Thread 3 could not be cancelled
PASS - test_posix_pthread_termination in 1.14 seconds
===================================================================
START - test_posix_multiple_threads_single_key
Different threads set different values to same key:
thread 0: set value = 806886024 and retrieved value = 806886024
thread 1: set value = 806886248 and retrieved value = 806886248
PASS - test_posix_multiple_threads_single_key in 0.17 seconds
===================================================================
START - test_posix_single_thread_multiple_keys
Single thread associates its value with different keys:
key 0: set value = 806886448 and retrieved value = 806886448
key 1: set value = 806886448 and retrieved value = 806886448
PASS - test_posix_single_thread_multiple_keys in 0.17 seconds
===================================================================
START - test_posix_clock
POSIX clock APIs
POSIX clock APIs test done
PASS - test_posix_clock in 2.4 seconds
===================================================================
START - test_posix_semaphore
PASS - test_posix_semaphore in 5.1 seconds
===================================================================
START - test_posix_normal_mutex
mutex lock is taken
PASS - test_posix_normal_mutex in 0.102 seconds
===================================================================
START - test_posix_recursive_mutex
recrusive mutex lock is taken
PASS - test_posix_recursive_mutex in 0.3 seconds
===================================================================
START - test_posix_mqueue
PASS - test_posix_mqueue in 0.11 seconds
===================================================================
START - test_posix_realtime
POSIX clock set APIs

Environment (please complete the following information):

• OS: (e.g. Linux, MacOS, Windows)
• Toolchain (e.g Zephyr SDK, ...)
• Commit SHA or Version used: zephyr-v2.5.0-2637-ga3469a049785

[hakehuang]

@MaureenHelm , @dleach02

[mmahadevan108]

This was fixed as part of PR #34743

[dleach02]

I confirm that it works...