feat: add support for STM32G474VxT

[daantimmer]

note: no QUADSPI and FMC support, yet

• QUADSPI IRQ is generated as QUADSPI1_IRQn, but it seems ST has dropped the 1 for these (new?) peripherals and the correct IRQn now is QUADSPI_IRQn.
• The FMC peripherals are different in terms of supported devices compared to already supported ST chips. This new peripheral doesn't support SDRAM. Thus the used/generated typedef is wrong. This needs to be looked in to.

[github-actions]

🦙 MegaLinter status: ⚠️ WARNING

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