tests/posix/common/ portability.posix.common.static_stack failing to build for riscv

[aescolar]

Describe the bug
tests/posix/common/ failing to build for m2gl025_miv

To Reproduce
Steps to reproduce the behavior:

1. twister -p m2gl025_miv -T tests/posix/common -s portability.posix.common.static_stack
2. See error

Expected behavior
No build errors

Impact
main CI failing

Logs and console output
https://github.com/zephyrproject-rtos/zephyr/actions/runs/9510842407/job/26216040417#step:11:1441

Environment (please complete the following information):

• OS: Ubuntu 22.04
• Toolchain (e.g Zephyr SDK, ...): 0.16.8
• Commit SHA or Version used: main after b98a607

Additional context
Introduced by 726fefd

[aescolar]

CC @fkokosinski @kgugala @tgorochowik
@mgielda @katsuster @edersondisouza @carlocaione @npitre

[ycsin]

Fix is in #74282