Expose PeopleActivity to Instant Apps

PeopleActivity is used for EDIT and INSERT actions.

Test: cts-tradefed run commandAndExit cts-dev -m
CtsAppSecurityHostTestCases -t
android.appsecurity.cts.EphemeralTest#testExposedSystemActivities

Change-Id: I6117600c91174f84f14d49471c988d48646584a0
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 96d698b..58209ae 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -76,6 +76,7 @@
             android:launchMode="singleTop"
             android:resizeableActivity="true"
             android:theme="@style/LaunchScreenTheme"
+            android:visibleToInstantApps="true"
             >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>