[PATCH] Travis: Add squashfs-tools

[Tom Rini]

So that the tests we now have for squashfs can run, add squashfs-tools
for mksquashfs.

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

diff --git a/.travis.yml b/.travis.yml
index 66ccf5b2ee6a..7e9e65f04fc8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -51,6 +51,7 @@ addons:
     - sbsigntool
     - fakeroot
     - mtd-utils
+    - squashfs-tools
 
 install:
  # Clone uboot-test-hooks
-- 
2.17.1