Add derive macros to KeyDescriptor

Change-Id: I8c02b504c7465c5057d5b5588e8f23724300921f
diff --git a/keystore2/src/android_security_keystore2.rs b/keystore2/src/android_security_keystore2.rs
index 23792d9..99629ff 100644
--- a/keystore2/src/android_security_keystore2.rs
+++ b/keystore2/src/android_security_keystore2.rs
@@ -854,6 +854,7 @@
           }
         }
         pub mod KeyDescriptor {
+          #[derive(Debug, Clone, Eq, PartialEq, Ord, PartialOrd)]
           pub struct KeyDescriptor {
             pub domain: crate::mangled::_7_android_8_security_9_keystore2_6_Domain, 
             pub namespace_: i64,