Generate metadata for DMA triggers

[i509VCB]

For DMA to be used by peripherals properly, we need to get DMA trigger information.

[i509VCB]

This seems to be available in the SDK. Just need to parse headers for it.

Example:
https://github.com/TexasInstruments/mspm0-sdk/blob/df6baed602d3007f0e7b3aaad858bac44e569609/source/ti/devices/msp/m0p/mspm0g110x.h#L321-L341