Sort dependencies in automatically generated PSA test cases

The output is less nice, since it no longer mostly matches the order in
which symbols are used in the test case arguments. But this makes the output
more canonical, so it will be easier to notice if semantic changes occur in
subsequent commits.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/scripts/mbedtls_dev/psa_information.py b/scripts/mbedtls_dev/psa_information.py
index d8bb137..c3a3d48 100644
--- a/scripts/mbedtls_dev/psa_information.py
+++ b/scripts/mbedtls_dev/psa_information.py
@@ -73,6 +73,7 @@
         dep = dep.lstrip('!')
         if dep.startswith('PSA_WANT') and dep not in _implemented_dependencies:
             dependencies.append('DEPENDENCY_NOT_IMPLEMENTED_YET_' + dep)
+    dependencies.sort()
 
 class Information:
     """Gather information about PSA constructors."""