[U-Boot] [PATCH] travis-ci: Add swig and libpython-dev to the package list

[Tom Rini]

As part of 1905c8fc711a we introduced failures depending on if swig and
libpython-dev are installed or not.  To provide coverage for this are of
code in the future ensure we have these packages installed.

Signed-off-by: Tom Rini <trini at konsulko.com>
---
 .travis.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 8024765c3ae3..48b7b101f1c6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,6 +19,8 @@ addons:
     - libsdl1.2-dev
     - python
     - python-virtualenv
+    - swig
+    - libpython-dev
     - gcc-powerpc-linux-gnu
     - gcc-arm-linux-gnueabihf
     - gcc-aarch64-linux-gnu
-- 
1.9.1