Add bridge-utils to deps for Ubuntu and Fedora.

They don't always get installed via dependencies any more.

Change-Id: I46f333c79ecccca9e10170d06039611fad5813dc
diff --git a/files/rpms/general b/files/rpms/general
index 52184d0..6d89d2e 100644
--- a/files/rpms/general
+++ b/files/rpms/general
@@ -1,3 +1,4 @@
+bridge-utils
 curl
 euca2ools # only for testing client
 git-core