Hi. When I try to compile a program that uses TIM15 and TIM16 on `l4x2`, I get this error relating to interrupt handling:
```rust
465 |         NVIC::unmask(pac::Interrupt::TIM15);
    |                                      ^^^^^ variant or associated item not found in `stm32_hal2::pac::Interrupt`

fn TIM15() {
    |    ^^^^^ variant or associated item not found in `stm32_hal2::pac::Interrupt`

```

Does this sound like a PAC bug?