Add missing includes.

Change-Id: I06ea08400efa511e627be37a4fd70fbdfadea2e6
diff --git a/minadbd/fuse_adb_provider.c b/minadbd/fuse_adb_provider.c
index f80533a..e926285 100644
--- a/minadbd/fuse_adb_provider.c
+++ b/minadbd/fuse_adb_provider.c
@@ -16,6 +16,7 @@
 
 #include <stdlib.h>
 #include <stdio.h>
+#include <string.h>
 #include <errno.h>
 
 #include "adb.h"