tests: fix some problems with test 53
tests: fix some problems with test 53

Two fixes to ensure that test 53 runs correctly:
 * remove a debug "print()" in the Python test
 * use the native ABI in the Python test

Signed-off-by: Paul Moore <a027184a55211cd23e3f3094f1fdc728df5e0500@paul-moore.com>

seccomp/libseccomp,seccomp/libseccomp,seccomp/libseccomp