Reduce verbosity of idmap dump.

Test: Ran vmbase example manually
Change-Id: I13f8534547f1778cd6c0417e01c5d4e08429869c
diff --git a/vmbase/example/src/main.rs b/vmbase/example/src/main.rs
index df81b2b..96c10a4 100644
--- a/vmbase/example/src/main.rs
+++ b/vmbase/example/src/main.rs
@@ -34,7 +34,7 @@
 use buddy_system_allocator::LockedHeap;
 use core::ffi::CStr;
 use libfdt::Fdt;
-use log::{debug, info, LevelFilter};
+use log::{debug, info, trace, LevelFilter};
 use vmbase::{logger, main, println};
 
 /// PCI MMIO configuration region size.
@@ -132,7 +132,7 @@
         .unwrap();
 
     info!("Activating IdMap...");
-    info!("{:?}", idmap);
+    trace!("{:?}", idmap);
     idmap.activate();
     info!("Activated.");