Adding Elapsed Time since boot field to GnssData [HAL].

Test: Added VTS and did a build check.
Bug: 121353225
Change-Id: I3cb329c16b0bfbff68c45033bcfdc85d53914f18
diff --git a/gnss/2.0/IGnssCallback.hal b/gnss/2.0/IGnssCallback.hal
index 6baff91..e2ac02a 100644
--- a/gnss/2.0/IGnssCallback.hal
+++ b/gnss/2.0/IGnssCallback.hal
@@ -18,6 +18,7 @@
 
 import @1.0::IGnssCallback;
 import @1.1::IGnssCallback;
+import GnssLocation;
 
 /**
  * The interface is required for the HAL to communicate certain information
@@ -44,4 +45,11 @@
      */
     gnssSetCapabilitiesCb_2_0(bitfield<Capabilities> capabilities);
 
+   /**
+     * Called when a GNSS location is available.
+     *
+     * @param location Location information from HAL.
+     */
+    gnssLocationCb_2_0(GnssLocation location);
+
 };
\ No newline at end of file