Typo in method name and inconsistance between traits

[pythcoiner]

Typo in configure_intter(r)upt()
_____________________ ^ __ ^

https://github.com/stm32-rs/stm32f3xx-hal/blob/b0cead18208099b94a085fb634d0db4e75ac6e4d/src/dma.rs#L408

Also signatures are non consistent between dma::Channel and serial::Serial:

https://github.com/stm32-rs/stm32f3xx-hal/blob/b0cead18208099b94a085fb634d0db4e75ac6e4d/src/serial.rs#L495

I can PR if you think it worth a breaking change on dma::Channel ....