Add xxhdpi; fix ActivityManager.getLauncherLargeIconSize() etc.

Change-Id: I519d6cdc527a402d93b98df17a64fc1da52ad598
diff --git a/native/include/android/configuration.h b/native/include/android/configuration.h
index 4d683fb..06cd3da 100644
--- a/native/include/android/configuration.h
+++ b/native/include/android/configuration.h
@@ -42,6 +42,8 @@
     ACONFIGURATION_DENSITY_MEDIUM = 160,
     ACONFIGURATION_DENSITY_TV = 213,
     ACONFIGURATION_DENSITY_HIGH = 240,
+    ACONFIGURATION_DENSITY_XHIGH = 320,
+    ACONFIGURATION_DENSITY_XXHIGH = 480,
     ACONFIGURATION_DENSITY_NONE = 0xffff,
 
     ACONFIGURATION_KEYBOARD_ANY  = 0x0000,