Travis: call all depends_* tests

Call all.sh to run all the available test_depends_* components. This
adds a run of depends-hashes.pl and depends-pkgalgs.pl.

Keep invoking test-ref-configs.pl rather than via all.sh so that it
doesn't run with ASan. This saves some time and ASan there doesn't
turn up much more than in the full config.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

.travis.yml

@@ -27,8 +27,7 @@ jobs:
     - name: enumerated configurations
       script:
         - tests/scripts/test-ref-configs.pl
-        - tests/scripts/curves.pl
-        - tests/scripts/key-exchanges.pl
+        - tests/scripts/all.sh -k 'test_depends_*' 'build_key_exchanges'
 
 after_failure:
 - tests/scripts/travis-log-failure.sh