tests/qtest/meson.build: Run the net filter tests only with default devices

These tests rely on a default NIC to be available. Skip them if we
used the "--without-default-devices" configure option.

Message-Id: <20230512124033.502654-17-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

tests/qtest/meson.build

@@ -34,10 +34,12 @@ qtests_pci = \
 qtests_cxl = \
   (config_all_devices.has_key('CONFIG_CXL') ? ['cxl-test'] : [])
 
+# FIXME: Get rid of get_option('default_devices') here and check
+#        for the availability of the default NICs in the tests
 qtests_filter = \
-  (slirp.found() ? ['test-netfilter'] : []) + \
-  (config_host.has_key('CONFIG_POSIX') ? ['test-filter-mirror'] : []) + \
-  (config_host.has_key('CONFIG_POSIX') ? ['test-filter-redirector'] : [])
+  (get_option('default_devices') and slirp.found() ? ['test-netfilter'] : []) + \
+  (get_option('default_devices') and config_host.has_key('CONFIG_POSIX') ? ['test-filter-mirror'] : []) + \
+  (get_option('default_devices') and config_host.has_key('CONFIG_POSIX') ? ['test-filter-redirector'] : [])
 
 qtests_i386 = \
   (slirp.found() ? ['pxe-test'] : []) + \
@@ -221,9 +223,7 @@ qtests_aarch64 = \
    'migration-test']
 
 qtests_s390x = \
-  (slirp.found() ? ['pxe-test', 'test-netfilter'] : []) +                 \
-  (config_host.has_key('CONFIG_POSIX') ? ['test-filter-mirror'] : []) +                         \
-  (config_host.has_key('CONFIG_POSIX') ? ['test-filter-redirector'] : []) +                     \
+  qtests_filter + \
   ['boot-serial-test',
    'drive_del-test',
    'device-plug-test',