Add a symbol to represent MNC=0

Bug: 7170488
Change-Id: Icfd39fd0c739216e89446252ea0e7ceba6f002c6
diff --git a/include/android/configuration.h b/include/android/configuration.h
index d5cddb3..6d8784d 100644
--- a/include/android/configuration.h
+++ b/include/android/configuration.h
@@ -113,6 +113,8 @@
     ACONFIGURATION_UI_MODE = 0x1000,
     ACONFIGURATION_SMALLEST_SCREEN_SIZE = 0x2000,
     ACONFIGURATION_LAYOUTDIR = 0x4000,
+
+    ACONFIGURATION_MNC_ZERO = 0xffff,
 };
 
 /**