Add inter-signal bias fields to GnssMeasurement and GnssClock

Bug: 147500886

Test: atest GnssMeasurementTest
      atest GnssClockTest

Change-Id: I8adaf1c1b0f6478695ca9b4768568af0ebfb11d4
diff --git a/Android.bp b/Android.bp
index 5fcefa6..abd0b7c 100644
--- a/Android.bp
+++ b/Android.bp
@@ -330,6 +330,7 @@
         "android.hardware.cas-V1.0-java",
         "android.hardware.contexthub-V1.0-java",
         "android.hardware.gnss-V1.0-java",
+        "android.hardware.gnss-V2.1-java",
         "android.hardware.health-V1.0-java-constants",
         "android.hardware.radio-V1.0-java",
         "android.hardware.radio-V1.1-java",