stm32: move dbgmcu stuff to toplevel config setting, defaulting to true.

examples/stm32l0/src/bin/blinky.rs

@@ -10,17 +10,14 @@ mod example_common;
 use embassy::executor::Spawner;
 use embassy::time::{Duration, Timer};
 use embassy_stm32::gpio::{Level, Output, Speed};
-use embassy_stm32::rcc::Rcc;
 use embassy_stm32::Peripherals;
 use embedded_hal::digital::v2::OutputPin;
 use example_common::*;
 
 #[embassy::main]
-async fn main(_spawner: Spawner, mut p: Peripherals) {
+async fn main(_spawner: Spawner, p: Peripherals) {
     info!("Hello World!");
 
-    Rcc::new(p.RCC).enable_debug_wfe(&mut p.DBGMCU, true);
-
     let mut led = Output::new(p.PB5, Level::High, Speed::Low);
 
     loop {