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/apts/general b/files/apts/general
index 3fa07a7..be7bf98 100644
--- a/files/apts/general
+++ b/files/apts/general
@@ -1,3 +1,4 @@
+bridge-utils
 pep8
 pylint
 python-pip