Mark ParsedConfiguration.parsedInfo as @Nullable

The ParsedConfiguration.parsedInfo field is marked as @NonNull, but in
case the parsed configuration originated from an overlay config file (as
opposed to the legacy manifest based approach), the field will be null.
Change the field from @NonNull to @Nullable to reflect this.

Bug: N/A
Test: builds
Change-Id: I4119712a65d0f7c6caf2b4810457aeaa05eb2777

core/java/com/android/internal/content/om/OverlayConfigParser.java

@@ -95,11 +95,11 @@ final class OverlayConfigParser {
         public final String policy;
 
         /** Information extracted from the manifest of the overlay. */
-        @NonNull
+        @Nullable
         public final ParsedOverlayInfo parsedInfo;
 
         ParsedConfiguration(@NonNull String packageName, boolean enabled, boolean mutable,
-                @NonNull String policy, @NonNull ParsedOverlayInfo parsedInfo) {
+                @NonNull String policy, @Nullable ParsedOverlayInfo parsedInfo) {
             this.packageName = packageName;
             this.enabled = enabled;
             this.mutable = mutable;