Add success type for FFA_PARTITION_INFO_GET

Add specialized success type for converting between
FFA_PARTITION_INFO_GET return arguments and generic success arguments.

Signed-off-by: Imre Kis <imre.kis@arm.com>
Change-Id: Iad79dc3eb44c7199e0715c3e997661bf96332631
diff --git a/src/lib.rs b/src/lib.rs
index 174ea9b..616ce02 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -207,6 +207,7 @@
 /// * `FFA_FEATURES` - [`SuccessArgsFeatures`]
 /// * `FFA_ID_GET` - [`SuccessArgsIdGet`]
 /// * `FFA_SPM_ID_GET` - [`SuccessArgsSpmIdGet`]
+/// * `FFA_PARTITION_INFO_GET` - [`partition_info::SuccessArgsPartitionInfoGet`]
 #[derive(Debug, Eq, PartialEq, Clone, Copy)]
 pub enum SuccessArgs {
     Args32([u32; 6]),