Add IGnssPowerIndication AIDL HAL (hardware/interfaces)

Bug: 168123084
Bug: 171821213
Bug: 172893736
Test: on Cuttlefish
Change-Id: Ia9fd1981a6f93b2cad168bd52dae8d7b8ede0282
diff --git a/gnss/aidl/default/Android.bp b/gnss/aidl/default/Android.bp
index 1fe43c3..23677ed 100644
--- a/gnss/aidl/default/Android.bp
+++ b/gnss/aidl/default/Android.bp
@@ -47,6 +47,7 @@
     srcs: [
         "Gnss.cpp",
         "GnssHidlHal.cpp",
+        "GnssPowerIndication.cpp",
         "GnssPsds.cpp",
         "GnssConfiguration.cpp",
         "service.cpp",