Wifi: JarJar HandlerExecutor

Removes @hide dependency for wifi stack.

Bug: 142935310
Test: Compiles
Change-Id: I3e3e680b093f74587b441ae34e25220c0fba00d4
diff --git a/Android.bp b/Android.bp
index 67b088c..1589c64 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1634,6 +1634,7 @@
     name: "framework-wifistack-shared-srcs",
     srcs: [
         ":framework-annotations",
+	"core/java/android/os/HandlerExecutor.java",
         "core/java/android/util/KeyValueListParser.java",
         "core/java/android/util/LocalLog.java",
         "core/java/android/util/Rational.java",