tests: Remove all P2P networks in call to reset

When resetting a device, remove all the P2P networks to prevent
unexpected behavior in following tests. This is needed for the case
where P2P Device interface is used.

Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>

tests/hwsim/wpasupplicant.py

@@ -119,6 +119,7 @@ class WpaSupplicant:
         res = self.request("FLUSH")
         if not "OK" in res:
             logger.info("FLUSH to " + self.ifname + " failed: " + res)
+        self.global_request("REMOVE_NETWORK all")
         self.request("SET p2p_add_cli_chan 0")
         self.request("SET p2p_no_go_freq ")
         self.request("SET p2p_pref_chan ")