suggest add nvme_format_block_size 4096 in namespace_utilization.json config file for case namespace_utilization_test.py

[kwzhu123]

1.used drive with sector size 512B run case
2. without nvme_format_block_size option in json file, will not format drive to sector size 4k
3.Check NS utilization 10GB used default LBA count 2621440(0x280000) for sector size 4k, case will failed

log:
Traceback (most recent call last):
File "/usr/lib64/python3.9/runpy.py", line 197, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/usr/lib64/python3.9/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/home/tcn/env/lib64/python3.9/site-packages/autoval/autoval_test_runner.py", line 233, in
main()
File "/home/tcn/env/lib64/python3.9/site-packages/autoval/autoval_test_runner.py", line 229, in main
AutoValTestRunner(autoval_cli()).main()
File "/home/tcn/env/lib64/python3.9/site-packages/autoval/autoval_test_runner.py", line 173, in main
obj.lifecycle()
File "/home/tcn/env/lib64/python3.9/site-packages/autoval/lib/test_base.py", line 153, in lifecycle
self._setup_execute_teardown()
File "/home/tcn/env/lib64/python3.9/site-packages/autoval/lib/test_base.py", line 217, in _setup_execute_teardown
self._setup_execute()
File "/home/tcn/env/lib64/python3.9/site-packages/autoval/lib/test_base.py", line 45, in wrapper
self._handle_exception(e)
File "/home/tcn/env/lib64/python3.9/site-packages/autoval/lib/test_base.py", line 43, in wrapper
func(self, *args, **kwargs)
File "/home/tcn/env/lib64/python3.9/site-packages/autoval/lib/test_base.py", line 383, in _setup_execute
self.execute()
File "/home/tcn/bin/ocp-diag-autoval-ssd/autoval_ssd/tests/namespace_utilization_test/namespace_utilization_test.py", line 102, in execute
self.validate_equal(
File "/home/tcn/env/lib64/python3.9/site-packages/autoval/lib/utils/autoval_utils.py", line 1282, in validate_equal
cls._validate(
File "/home/tcn/env/lib64/python3.9/site-packages/autoval/lib/utils/autoval_utils.py", line 1046, in _validate
raise TestStepError(_msg)
autoval.lib.utils.autoval_exceptions.TestStepError: [AUTOVAL TEST STEP ERROR] FAILED - 22 - nuse size of nvme0n1 after 10GB write operation - Actual: [20971520] - Validation: [isEqual] - Expected: [2621440]