Convert all comments into "doxygen-ready" comments.

Bug: 36453077
Test: mma
Change-Id: I0b1f77dfae5d2258969e33d85ecf45401ffbdfaa
diff --git a/gnss/1.0/IGnssNi.hal b/gnss/1.0/IGnssNi.hal
index c823bf0..fa98ab0 100644
--- a/gnss/1.0/IGnssNi.hal
+++ b/gnss/1.0/IGnssNi.hal
@@ -17,19 +17,19 @@
 package android.hardware.gnss@1.0;
 import IGnssNiCallback;
 
-/*
+/**
  * Extended interface for Network-initiated (NI) support. This interface is used
  * to respond to NI notifications originating from the HAL.
  */
 interface IGnssNi {
-    /*
+    /**
      * Registers the callbacks for HAL to use.
      *
      * @param callback handle to IGnssNiCallback interface.
      */
     setCallback(IGnssNiCallback callback);
 
-    /*
+    /**
      * Sends a response to HAL.
      *
      * @param notifId An ID generated by HAL to associate NI notifications and