[FFI] Bring up latest tvm-ffi

[tqchen]

This PR brings up tvm-ffi dependency to latest

[gemini-code-assist]

Summary of Changes

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This pull request focuses on updating the tvm-ffi subproject to its most recent version, ensuring the project leverages the latest foreign function interface capabilities. Concurrently, it introduces a significant enhancement to the ConfigSchema by enabling default configuration values to be dynamically generated by factory functions, thereby increasing flexibility and expressiveness in defining configuration schemas.

Highlights

• tvm-ffi Subproject Update: The tvm-ffi subproject has been updated to its latest commit, bringing in recent FFI improvements.
• ConfigSchema Enhancements: The ConfigSchema mechanism now supports providing default values through factory functions, offering more dynamic configuration options.
• Refactored Default Value Handling: Internal logic within ConfigSchema has been refactored to properly distinguish and handle default values that are static versus those generated by factory functions.

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Changelog

• 3rdparty/tvm-ffi
  • Updated the tvm-ffi subproject commit from c78e8b4eefa076c457af97bd3930dd664aec71c3 to 35cbc3272cf4b02d8d2e34d2510be5b34d0046ea.
• include/tvm/ir/config_schema.h
  • Added a default_from_factory boolean member to ConfigSchema::Entry to indicate if a default value is produced by a factory function.
  • Modified the ConfigSchema::Apply method to conditionally invoke a factory function for default values if default_from_factory is true.
  • Updated the ConfigSchema::Apply trait processing to correctly handle and assign the default_from_factory flag and the default_value_or_factory.

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Code Review

This pull request updates the tvm-ffi submodule to a more recent commit. The changes in include/tvm/ir/config_schema.h are a direct result of this update, adapting the code to support default value factories for configuration options. The modifications to the OptionEntry struct and the Resolve and MakeEntry methods are consistent with the new functionality provided by the updated dependency. The implementation appears correct and the changes are well-contained.