Bump SVD submodule and regenerate PACs

[tmplt]

This issue originates from https://github.com/posborne/cmsis-svd/issues/153.

After a chat with Microchip it was pointed out that http://packs.download.atmel.com/ is outdated. The up-to-date pack repository is https://packs.download.microchip.com/, where much more recent SVD files for the SAM{E,V,S}7X chips can be found: the latest version for the SAME70 is 4.8.125 (from 2022), versus 2.4.166 (from 2019) mirrored in this repo.

An SVD issue regarding USART-SPI clock sources has also been filed recently; a bug-fix release is expected soon.

Work items:

• PR new SVDs to cmsis-svd
• Update PAC crates code
• Update all references about sources of SVDs used to generate PACs
• Adjust HAL to new PACs changes
• Publish PAC crates

[michalfita]

I'm still waiting for the merge of the PR in the upstream 😞