Fix the fs_config call.

fs_config ORs in bits to the existing mode value.

Change-Id: I23f0655f9c4c8c8dc43ed979f3b519d7c03a11f8
diff --git a/adb/file_sync_service.cpp b/adb/file_sync_service.cpp
index abf1c02..cadf5b3 100644
--- a/adb/file_sync_service.cpp
+++ b/adb/file_sync_service.cpp
@@ -305,7 +305,7 @@
     gid_t gid = -1;
     uint64_t cap = 0;
     if (should_use_fs_config(path)) {
-        unsigned int broken_api_hack;
+        unsigned int broken_api_hack = mode;
         fs_config(path.c_str(), 0, &uid, &gid, &broken_api_hack, &cap);
         mode = broken_api_hack;
     }