Use embassy/defmt-timestamp-uptime in all examples.

examples/nrf/src/bin/rng.rs

@@ -2,15 +2,15 @@
 #![no_main]
 #![feature(type_alias_impl_trait)]
 
-#[path = "../example_common.rs"]
-mod example_common;
-
 use embassy::executor::Spawner;
 use embassy_nrf::interrupt;
 use embassy_nrf::rng::Rng;
 use embassy_nrf::Peripherals;
 use rand::Rng as _;
 
+use defmt_rtt as _; // global logger
+use panic_probe as _;
+
 #[embassy::main]
 async fn main(_spawner: Spawner, p: Peripherals) {
     let mut rng = Rng::new(p.RNG, interrupt::take!(RNG));