[MPS] Handle int inputs of matmul ops by returning error for unsupported data types (#82183)
This is in-continuation of fixes for TestConsistency for MPS backend.
* Add error messages for unsupported matmul ops
* Add error handling for int inputs for linear op
### Description
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### Issue
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### Testing
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Pull Request resolved: https://github.com/pytorch/pytorch/pull/82183
Approved by: https://github.com/razarmehr
