Add fts, err, and sys/queue for grep

Change-Id:	Id47514a1812d828e95efa2fab0e9c15c5b682b58
diff --git a/libc/Android.mk b/libc/Android.mk
index 92f8c19..229de77 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -225,7 +225,9 @@
 	bionic/dirname_r.c \
 	bionic/drand48.c \
 	bionic/erand48.c \
+	bionic/err.c \
 	bionic/fork.c \
+	bionic/fts.c \
 	bionic/if_nametoindex.c \
 	bionic/if_indextoname.c \
 	bionic/ioctl.c \