GNSS HAL & VTS for Duty Cycling & Low Power APIs.

Defintions for 2 GNSS Android P features:
- The Duty Cycling OFF API to enable high accuracy applications development
- The Low Power Mode GNSS API to save power when indoor

VTS tests for both features.

Bug: 64009176
Test: hidl-gen/compile/build checks, no functional tests yet
Change-Id: I4a41757e4ad6747f22a7e9ae1e0024f083c5fbfb
diff --git a/gnss/1.1/Android.bp b/gnss/1.1/Android.bp
index 09f65a4..6909807 100644
--- a/gnss/1.1/Android.bp
+++ b/gnss/1.1/Android.bp
@@ -9,6 +9,7 @@
     srcs: [
         "IGnss.hal",
         "IGnssCallback.hal",
+        "IGnssMeasurement.hal",
     ],
     interfaces: [
         "android.hardware.gnss@1.0",