Add default BINDGEN_EXTRA_CLANG_ARGS for AndroidEnvironment

[iota9star]

📝 Description

Add default BINDGEN_EXTRA_CLANG_ARGS environment variable configuration for Android NDK builds to ensure bindgen correctly generates C/C++ bindings for the Android platform.

🔧 Changes

• Added default BINDGEN_EXTRA_CLANG_ARGS configuration
• Includes Android target architecture and sysroot path settings
• Ensures bindgen can locate Android NDK headers and libraries

✅ Problem Solved

• Fixes issue where bindgen couldn't properly parse Android-specific types and headers on Android platform
• Eliminates the tedious manual environment variable setup
• Improves consistency and reliability of Android builds