[doc] Add RKP link to derive_cdi_leaf_priv documentation

Test: N/A
Change-Id: Iea43daf301ffae9e9df8b7bb562afdfaaacfe9f4
diff --git a/libs/dice/open_dice/src/ops.rs b/libs/dice/open_dice/src/ops.rs
index 7174d3e..47b5244 100644
--- a/libs/dice/open_dice/src/ops.rs
+++ b/libs/dice/open_dice/src/ops.rs
@@ -95,6 +95,10 @@
 ///
 /// The corresponding public key is included in the leaf certificate of the DICE chain
 /// contained in `dice_artifacts`.
+///
+/// Refer to the following documentation for more information about CDI_Leaf_Priv:
+///
+/// security/rkp/aidl/android/hardware/security/keymint/IRemotelyProvisionedComponent.aidl
 pub fn derive_cdi_leaf_priv(dice_artifacts: &dyn DiceArtifacts) -> Result<PrivateKey> {
     let cdi_priv_key_seed = derive_cdi_private_key_seed(dice_artifacts.cdi_attest())?;
     let (_, private_key) = keypair_from_seed(cdi_priv_key_seed.as_array())?;