twister: Fix quarantine filtering simulations

[gchwier]

Quarantine filter was not correctly identifying the simulator name. Now it uses the simulator name from the Platform object, ensuring that quarantined tests are properly excluded or verified.

Tested with:

• mps2/an521/cpu0 supports two simulators: https://github.com/zephyrproject-rtos/zephyr/blob/main/boards/arm/mps2/mps2_an521_cpu0.yaml#L7

Create quarantine.yaml file:

cat quarantine.yaml
- simulations:
  - armfvp
  comment: "armfvp"
- simulations:
  - qemu
  comment: "qemu"

Check if quarantine works for the default simulations (qemu):
./scripts/twister -T samples/hello_world -p mps2/an521/cpu0 -vv -ll debug -c --quarantine-list quarantine.yaml
logged:
DEBUG - mps2/an521/cpu0 samples/hello_world/sample.basic.helloworld FILTERED: Quarantine: qemu

Check if quarantine works with non-default simulator (armfvp):
./scripts/twister -T samples/hello_world -p mps2/an521/cpu0 -vv -ll debug -c --simulation armfvp --quarantine-list quarantine.yaml
logged:
DEBUG - mps2/an521/cpu0 samples/hello_world/sample.basic.helloworld FILTERED: Quarantine: armfvp

Run with other simulations:
./scripts/twister -T samples/hello_world -p qemu_x86 -p native_sim -vv -ll debug -c --quarantine-list quarantine.yaml
logged

DEBUG   - qemu_x86/atom             samples/hello_world/sample.basic.helloworld        FILTERED: Quarantine: qemu
...
INFO    - 1/1 native_sim/native         samples/hello_world/sample.basic.helloworld        PASSED (native 2.623s <host>)

Issue introduced by: #79174

[golowanow]

thank you for fixing this!
could you also add a missing example of quarantine.yaml with simulations here
https://github.com/zephyrproject-rtos/zephyr/blob/main/doc/develop/test/twister.rst?plain=1#L1529

[gchwier]

thank you for fixing this! could you also add a missing example of quarantine.yaml with simulations here https://github.com/zephyrproject-rtos/zephyr/blob/main/doc/develop/test/twister.rst?plain=1#L1529

thanks for review, updated docs