test: meta: wait Test both NETCONF and RESTCONF, always

Without resetting args.transport the situation may occur when wait
running NETCONF and the next test RESTCONF. If this happen, the other
test may fail.

Without fix:

14:46:28 infamy0:test # ./case/meta/wait.py
 Waiting for ['dut1', 'dut2', 'dut3', 'dut4'] to come up, timeout: 5.0 min
 Found fe80::2a0:85ff:fe00:101%d1a on d1a (connected to dut1:e1)
 fe80::2a0:85ff:fe00:101%d1a answers to TCP connections on port 830 (NETCONF)
 Found fe80::2a0:85ff:fe00:201%d2a on d2a (connected to dut2:e1)

With fix:
14:51:56 infamy0:test # ./case/meta/wait.py
 Waiting for ['dut1', 'dut2', 'dut3', 'dut4'] to come up, timeout: 5.0 min
 Found fe80::2a0:85ff:fe00:101%d1a on d1a (connected to dut1:e1)
 fe80::2a0:85ff:fe00:101%d1a answers to TCP connections on port 830 (NETCONF)
 fe80::2a0:85ff:fe00:101%d1a answers to TCP connections on port 443 (RESTCONF)
 Found fe80::2a0:85ff:fe00:201%d2a on d2a (connected to dut2:e1)

Author: mattiaswal

test/case/meta/wait.py

@@ -30,7 +30,7 @@ def is_reachable(node, env):
     with test.step("Initialize"):
         # The test is designed to be run on a physical topology.
         env = infamy.Env(ltop=False)
-
+        env.args.transport = None
         ctrl = env.ptop.get_ctrl()
         infixen = env.ptop.get_infixen()