Fix MBTK_AF_SUPPORT

Change-Id: Iab6f5f90fa7404e18bbd89d7fa651e57ada23c1f
diff --git a/config b/config
index d8c06fd..ae69276 100755
--- a/config
+++ b/config
@@ -1,5 +1,5 @@
 # Custom AF support?
-CONFIG_AT_SUPPORT=n
+CONFIG_AF_SUPPORT=n
 
 # Custom YX support?
 CONFIG_YX_SUPPORT=n