zdtm: run more tests in userns

They pass in userns, so we can run them by default.

travis-ci: success for zdtm: run more tests in userns
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

test/zdtm/static/cow00.desc

 # /proc/pid/pagemap doesn't show phys addr for unprivileged users
-{'flavor': 'ns h', 'flags': 'suid'}
+{'flavor': 'ns h uns', 'flags': 'suid'}

test/zdtm/static/cow01.desc

-{'flavor': 'h ns', 'flags': 'suid'}
+{'flavor': 'h ns uns', 'flags': 'suid'}

test/zdtm/static/mntns_link_ghost.desc

-{'flavor': 'ns', 'flags': 'suid', 'feature': 'mnt_id'}
+{'flavor': 'ns uns', 'flags': 'suid', 'feature': 'mnt_id'}

test/zdtm/static/mntns_remap.desc

-{'flavor': 'ns', 'flags': 'suid', 'feature': 'mnt_id'}
+{'flavor': 'ns uns', 'flags': 'suid', 'feature': 'mnt_id'}

test/zdtm/static/packet_sock_spkt.desc

-{'flavor':'h', 'flags' : 'suid'}
+{'flavor':'h uns ns', 'flags' : 'suid'}

test/zdtm/static/pty03.desc

-{'flavor': 'h'}
+{'flavor': 'h uns'}

test/zdtm/static/remap_dead_pid.desc

-{'flavor': 'ns'}
+{'flavor': 'ns uns'}

test/zdtm/static/remap_dead_pid_root.desc

-{'flavor': 'ns'}
+{'flavor': 'ns uns'}

test/zdtm/static/seccomp_strict.desc

-{'flavor': 'h', 'flags': 'suid', 'feature': 'seccomp_suspend'}
+{'flags': 'suid', 'feature': 'seccomp_suspend'}

test/zdtm/static/unlink_regular00.desc

-{'flavor': 'ns', 'flags': 'suid', 'opts': '--link-remap'}
+{'flavor': 'ns uns', 'flags': 'suid', 'opts': '--link-remap'}