- Improve handling of `GPostfix` in `setPrinterParameters` function in `DecoderEmitter.cpp`
- Update `setPrinterParameters` to handle more cases when setting `GPostfix`
- Add `switch` statement to handle different cases when setting `GPostfix` based on output language
- Remove unnecessary line setting `GPostfix` in `DecoderEmitter.cpp`

- Refactor PrinterCapstone.cpp to utilize a new normal mnemonic function for MatchableInfo objects
- Replace hardcoded Mnemonic.upper() with new function call for readability

- Change type of `Mn` to `std::string` in [llvm/utils/TableGen/PrinterCapstone.cpp]
- Use `mapped_iterator` to uppercase `Mnemonic` before assigning to `Mn`

- Replace ARM_REG_ENDING with TargetName_REG_ENDING in PrinterCapstone.cpp