[RP2] Flash functions hang the board with a 16MiB flash

I have a custom board based on the RP2350 with a W25Q128JV (16 MiB) instead of W25Q32JV (4 MiB). The board boots and works fine as long as I don't use the `machine.EraseBlocks()` or other flash-related functions. If I do - the board hangs immediately.