Format entry register values as 64-bit hex.

Bug: 223166344
Test: atest vmbase_example.integration_test
Change-Id: Ic0f0f02de570d60eaff877455a1c111f4fd8fb20
diff --git a/pvmfw/src/main.rs b/pvmfw/src/main.rs
index 280e1ce..0d71f6e 100644
--- a/pvmfw/src/main.rs
+++ b/pvmfw/src/main.rs
@@ -27,7 +27,7 @@
 pub fn main(fdt_address: u64, payload_start: u64, payload_size: u64, arg3: u64) {
     println!("pVM firmware");
     println!(
-        "fdt_address={:#010x}, payload_start={:#010x}, payload_size={:#010x}, x3={:#010x}",
+        "fdt_address={:#018x}, payload_start={:#018x}, payload_size={:#018x}, x3={:#018x}",
         fdt_address, payload_start, payload_size, arg3,
     );
 }