Add new core-icu4j after separating icu4j from core-libart

Bug: 138994281
Test: treehugger
Change-Id: Ib000192b84abca9d248f92e66cf95c2c81064522
diff --git a/Android.bp b/Android.bp
index 089c234..4c1f60b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -17,6 +17,7 @@
 
     static_libs: [
         "conscrypt",
+        "core-icu4j",
         "core-libart",
         "ext",
         "framework",