drivers: entropy_mcux_caam: large entropy buffers fail intermittently

[decsny]

Describe the bug Large size entropy buffers taken as input to entropy_get_entropy when using mcux caam driver seem to cause entropy_api test to fail (sometimes)

To Reproduce Steps to reproduce the behavior:

1. Remove print statement of the loop of each random number in the entropy api test (otherwise large buffers will print super slow)
2. Change BUFFER_LENGTH to any value of interest
3. Build the entropy API test for RT1170 and run

Results

• For small size buffer (<100), the test almost always passes.
• For values in the range of maybe ?100-?1000, the test passes and fails intermittently, about 50/50 around 500, but there seems some trend of the ratio of pass:fail in this range
• For very large values, the test fails every time.

Expected results was for the buffer length to not have an effect on whether or not the test will pass.

Additional Context tested on 9948c29885860b9800257f5a1fd466eb046b426e

[github-actions[bot]]

This issue has been marked as stale because it has been open (more than) 60 days with no activity. Remove the stale label or add a comment saying that you would like to have the label removed otherwise this issue will automatically be closed in 14 days. Note, that you can always re-open a closed issue at any time.

[github-actions[bot]]

This issue has been marked as stale because it has been open (more than) 60 days with no activity. Remove the stale label or add a comment saying that you would like to have the label removed otherwise this issue will automatically be closed in 14 days. Note, that you can always re-open a closed issue at any time.

[github-actions[bot]]

This issue has been marked as stale because it has been open (more than) 60 days with no activity. Remove the stale label or add a comment saying that you would like to have the label removed otherwise this issue will automatically be closed in 14 days. Note, that you can always re-open a closed issue at any time.