Include module name and type in validation error messages

[RohithVangalla1]

Previously, validation errors from ModuleValidator.validate() did not indicate which specific sub-module caused the failure. For models with many layers, this made debugging DP compatibility issues difficult — users had to manually inspect each layer to find the offending module.

This change prepends the module path and type to each validation error message. For example, instead of:
'BatchNorm cannot support DP'
users now see:
'encoder.layer.3.norm (BatchNorm2d): BatchNorm cannot support DP'

This makes it immediately clear which layer needs to be replaced, especially in large models with hundreds of sub-modules.

Addresses the TODO:
'use module name here - it's useful part of error message'

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Docs change / refactoring / dependency upgrade

Motivation and Context / Related issue

How Has This Been Tested (if it applies)

Checklist

• The documentation is up-to-date with the changes I made.
• I have read the CONTRIBUTING document and completed the CLA (see CONTRIBUTING).
• All tests passed, and additional code has been covered with new tests.

[meta-cla]

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