Fix package access bug.

Bug where we weren't passing the PackageIdentifiers from the
SetSchemaRequest properly.

Bug: 179416188
Test: atest -m -c --rebuild-module-info CtsAppSearchTestCases
Change-Id: Ie51a27a728ae7a2f25960ab47ee4054a56ed6abe
diff --git a/service/java/com/android/server/appsearch/AppSearchManagerService.java b/service/java/com/android/server/appsearch/AppSearchManagerService.java
index 3bbc945..6bea068 100644
--- a/service/java/com/android/server/appsearch/AppSearchManagerService.java
+++ b/service/java/com/android/server/appsearch/AppSearchManagerService.java
@@ -97,7 +97,7 @@
                         schemasPackageAccessibleBundles.entrySet()) {
                     List<PackageIdentifier> packageIdentifiers =
                             new ArrayList<>(entry.getValue().size());
-                    for (int i = 0; i < packageIdentifiers.size(); i++) {
+                    for (int i = 0; i < entry.getValue().size(); i++) {
                         packageIdentifiers.add(new PackageIdentifier(entry.getValue().get(i)));
                     }
                     schemasPackageAccessible.put(entry.getKey(), packageIdentifiers);