Add in missing FONT support.

Change-Id: I30854d5466b14a2349893f339dd4d48c29932d94
diff --git a/rsDefines.h b/rsDefines.h
index 0e0cd8d..854df08 100644
--- a/rsDefines.h
+++ b/rsDefines.h
@@ -155,6 +155,7 @@
     RS_TYPE_PROGRAM_VERTEX,
     RS_TYPE_PROGRAM_RASTER,
     RS_TYPE_PROGRAM_STORE,
+    RS_TYPE_FONT,
 
     RS_TYPE_INVALID = 10000,
 };