oeqa/qemurunner: implement vmdk images support

Qemurunner should not pass rootfs to runqemu in case
rootfs is not a filesystem itself.  Some images could
be built into some disk format like vmdk and this
commit makes qemurunner handle such images properly.

(From OE-Core rev: 7d868424545d1dd067929c05b48e2b6fdbc2ad02)

Signed-off-by: Sergei Zhmylev <s.zhmylev@yadro.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

meta/lib/oeqa/utils/qemurunner.py

@@ -177,7 +177,11 @@ def start(self, qemuparams = None, get_ip = True, extra_bootparams = None, runqe
                 launch_cmd += ' slirp'
             if self.use_ovmf:
                 launch_cmd += ' ovmf'
-            launch_cmd += ' %s %s %s' % (runqemuparams, self.machine, self.rootfs)
+            launch_cmd += ' %s %s' % (runqemuparams, self.machine)
+            if self.rootfs.endswith('.vmdk'):
+                self.logger.debug('Bypassing VMDK rootfs for runqemu')
+            else:
+                launch_cmd += ' %s' % (self.rootfs)
 
         return self.launch(launch_cmd, qemuparams=qemuparams, get_ip=get_ip, extra_bootparams=extra_bootparams, env=env)