Update comments on EVS 1.0 interfaces

This change fixes hidl-lint errors and warnings in EVS 1.0 interface
definitions.

Bug: 135472573
Change-Id: I4b6b5df792875a8dde2ee146f88fb401a4d5e860
Signed-off-by: Changyeon Jo <changyeon@google.com>
diff --git a/automotive/evs/1.0/IEvsCameraStream.hal b/automotive/evs/1.0/IEvsCameraStream.hal
index 4e743b2..ec18f6a 100644
--- a/automotive/evs/1.0/IEvsCameraStream.hal
+++ b/automotive/evs/1.0/IEvsCameraStream.hal
@@ -31,6 +31,8 @@
      * When the last frame in the stream has been delivered, a NULL bufferHandle
      * must be delivered, signifying the end of the stream. No further frame
      * deliveries may happen thereafter.
+     *
+     * @param buffer a buffer descriptor of a delivered image frame.
      */
     oneway deliverFrame(BufferDesc buffer);
 };