[fdt][test] Add integration test for libfdt

Bug: 282928116
Test: atest liblibfdt.integration_test
Change-Id: Ic9a59bf4ee4d925e028e7d2043d648fad93aa85d
diff --git a/libs/libfdt/src/lib.rs b/libs/libfdt/src/lib.rs
index df1058e..91214b3 100644
--- a/libs/libfdt/src/lib.rs
+++ b/libs/libfdt/src/lib.rs
@@ -191,7 +191,7 @@
 }
 
 /// DT node.
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, Debug)]
 pub struct FdtNode<'a> {
     fdt: &'a Fdt,
     offset: c_int,
@@ -599,6 +599,7 @@
 }
 
 /// Wrapper around low-level libfdt functions.
+#[derive(Debug)]
 #[repr(transparent)]
 pub struct Fdt {
     buffer: [u8],