Remove usage of array_chunks

It has been removed in newer rustc versions

src/dtb/mod.rs

@@ -193,7 +193,9 @@ pub fn get_interrupt(fdt: &Fdt, node: &FdtNode, idx: usize) -> Option<IrqCell> {
         .unwrap();
     let mut intr = interrupts
         .value
-        .array_chunks::<4>()
+        .as_chunks::<4>()
+        .0
+        .iter()
         .map(|f| BE::read_u32(f))
         .skip(parent_interrupt_cells * idx);
     match parent_interrupt_cells {

src/main.rs

@@ -45,11 +45,11 @@
 #![feature(iter_next_chunk)]
 #![feature(let_chains)]
 #![feature(naked_functions)]
+#![feature(slice_as_chunks)]
 #![feature(sync_unsafe_cell)]
 #![feature(variant_count)]
 #![cfg_attr(not(test), no_std)]
 #![cfg_attr(not(test), no_main)]
-#![feature(array_chunks)]
 #![feature(if_let_guard)]
 #![feature(iterator_try_collect)]
 #![feature(new_zeroed_alloc)]