#8246: functional_whisper CG test_demo

[kkeerthana0573]

This PR contains test_demo for functional_whisper Conditional Generation.

[tt-rkim]

@kkeerthana0573
Pls review the following errors in nightly pipeline:

FAILED tests/ttnn/integration_tests/whisper/test_ttnn_functional_whisper.py::test_encoder[sequence_length=3000-feature_size=80-batch_size=1-model_name=openai/whisper-base-ttnn_model=models.experimental.functional_whisper.tt.ttnn_functional_whisper] - TypeError: encoder() missing 1 required keyword-only argument: 'device'
FAILED tests/ttnn/integration_tests/whisper/test_ttnn_functional_whisper.py::test_ttnn_whisper[ttnn_model=models.experimental.functional_whisper.tt.ttnn_functional_whisper] - TypeError: whisper() missing 1 required keyword-only argument: 'device'
FAILED tests/ttnn/integration_tests/whisper/test_ttnn_optimized_functional_whisper.py::test_encoder[sequence_length=3000-feature_size=80-batch_size=1-model_name=openai/whisper-base-ttnn_model=models.experimental.functional_whisper.tt.ttnn_optimized_functional_whisper] - TypeError: encoder() missing 1 required keyword-only argument: 'device'
FAILED tests/ttnn/integration_tests/whisper/test_ttnn_optimized_functional_whisper.py::test_ttnn_whisper[ttnn_model=models.experimental.functional_whisper.tt.ttnn_optimized_functional_whisper] - TypeError: whisper() missing 1 required keyword-only argument: 'device'

Thank you for running. Don't forget to encourage your fellow MCW team members to continue such practices

[kkeerthana0573]

@tt-rkim,
Both the tests are updated.
All whisper integration tests are updated in #8339. To avoid further conflicts, I shall merge this PR after #8339 is merged.
Thanks.