Memory map comparison

Thanks for the PR! Your change looks right for the H747 but it's also affecting the H7B3 and H735 files (RM0455 and RM0468) which don't seem to have a DSI interrupt (their NVIC tables have a blank for position 123). Could you move the patch to the stm32h747cm4.yaml and stm32h747cm7.yaml files directly, or perhaps create a new common_patches/h7_dsi_interrupt.yaml file, so we can target just the H747/RM0399 devices?

Hah, nevermind, I saw #648 which also fixes this.

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