Add runtime_resource_overlay.

Fixes: 119811120
Test: app_test.go
Test: Converted and built IconPackFilledSystemUIOverlay
Change-Id: I71841148c25f820ba829f751a201d2c771c8bd20

java/sdk.go

@@ -15,14 +15,15 @@
 package java
 
 import (
-	"android/soong/android"
-	"android/soong/java/config"
 	"fmt"
 	"path/filepath"
 	"sort"
 	"strconv"
 	"strings"
 
+	"android/soong/android"
+	"android/soong/java/config"
+
 	"github.com/google/blueprint/pathtools"
 )