test-runner: Enable --p2p when creating interfaces

Enable p2p for the hwsim radios so that we can test P2P.  This can be
made optional for the tests but it seems safe to enable always.

tools/test-runner

@@ -312,7 +312,7 @@ class VirtualRadio(Radio):
 		self.disable_cipher = None
 		self.disable_iftype = None
 
-		args = ['hwsim', '--create', '--name', self.name, '--nointerface']
+		args = ['hwsim', '--create', '--name', self.name, '--nointerface', '--p2p']
 
 		if config:
 			self.disable_iftype = config.get('iftype_disable', False)