fw-rust: Use DefaultClock type alias everywhere

firmware/rust/src/screen/splash.rs

@@ -1,8 +1,9 @@
 use crate::{
     assets::{ONDERS_ORG, SACRED_CHAO},
     lcd::Lcd,
+    DefaultClock,
 };
-use atmega_hal::{clock::MHz8, delay::Delay};
+use atmega_hal::delay::Delay;
 use embedded_hal::{blocking::delay::DelayMs, spi::FullDuplex};
 use nb::block;
 
@@ -10,7 +11,7 @@ pub struct Splash;
 
 impl Splash {
     pub fn draw(&self, lcd: &mut Lcd) {
-        let mut delay = Delay::<MHz8>::new();
+        let mut delay = Delay::<DefaultClock>::new();
 
         for (i, page) in SACRED_CHAO.iter().enumerate() {
             lcd.move_cursor(31, 1 + i as u8);