Use ic_add_white for consistency instead

Test: Check "New APN" icon in ApnSettingsActivity.

Change-Id: I0fc29384e0714a780842652178e3e88ff311456a
Signed-off-by: Taesu Lee <taesu82.lee@samsung.com>
diff --git a/src/com/android/messaging/ui/appsettings/ApnSettingsActivity.java b/src/com/android/messaging/ui/appsettings/ApnSettingsActivity.java
index 8b4644e..13f775a 100644
--- a/src/com/android/messaging/ui/appsettings/ApnSettingsActivity.java
+++ b/src/com/android/messaging/ui/appsettings/ApnSettingsActivity.java
@@ -274,7 +274,7 @@
             if (!mUnavailable) {
                 menu.add(0, MENU_NEW, 0,
                         getResources().getString(R.string.menu_new_apn))
-                        .setIcon(R.drawable.ic_add_gray)
+                        .setIcon(R.drawable.ic_add_white)
                         .setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
                 menu.add(0, MENU_RESTORE, 0,
                         getResources().getString(R.string.menu_restore_default_apn))