tests: also add qemu shutdown trace debug logs to integration script

Again to chase https://github.com/systemd/systemd/issues/38240
as suggested on QEMU's matrix channel

hwdb.d/70-touchpad.hwdb

@@ -43,6 +43,7 @@ touchpad:bluetooth:*
 # Magic Trackpad (1 and 2)
 touchpad:usb:v05acp030e:*
 touchpad:usb:v05acp0265:*
+touchpad:usb:v05acp0324:*
  ID_INPUT_TOUCHPAD_INTEGRATION=external
 
 ###########################################################

test/integration-tests/integration-test-wrapper.py

@@ -617,7 +617,13 @@ def main() -> None:
 
     # XXX: debug for https://github.com/systemd/systemd/issues/38240
     if vm:
-        cmd += ['--qemu-args=-d cpu_reset,guest_errors -D /dev/stderr']
+        # Tracing is not supported in centos/fedora qemu builds
+        if summary.distribution in ('centos', 'fedora'):
+            cmd += ['--qemu-args=-d cpu_reset,guest_errors -D /dev/stderr']
+        else:
+            cmd += [
+                '--qemu-args=-d cpu_reset,guest_errors,trace:kvm_run_exit_system_event,trace:qemu_system_\*_request -D /dev/stderr'  # noqa: E501
+            ]
 
     try:
         result = subprocess.run(cmd)

test/test-network/systemd-networkd-tests.py

@@ -8630,7 +8630,6 @@ class NetworkdDHCPClientTests(unittest.TestCase, Utilities):
 
         start_networkd()
         self.wait_online('veth-peer:carrier')
-        masq = lambda bs: ':'.join(f'{b:02x}' for b in bs)
         start_dnsmasq('--dhcp-option=114,http://|invalid/url',
                       '--dhcp-option=option6:103,http://|invalid/url')