rp2040-pac also contains:
```
src/lib.rs:pub use cortex_m::peripheral::Peripherals as CorePeripherals;
src/lib.rs:pub use cortex_m::peripheral::{CBP, CPUID, DCB, DWT, FPB, ITM, MPU, NVIC, SCB, SYST, TPIU};
```
I guess those should better not be re-exported by the pac, then?