[MSP430][Clang] Update list of MCUs (#91258)

This updates the list of MSP430 MCUs from TI's devices.csv obtained from [1] under the "Header and Support Files" link. A simple python script has been used to generate this list and is included as well.

[1]: https://www.ti.com/tool/MSP430-GCC-OPENSOURCE#downloads

Author: maribu