Rename console methods in port manager to use the generic tcp term in the name.

Fixes bug when a console port is allocated to a Ghost VM instance and not released.
Warnings at exit when TCP/UDP ports are still allocated.

tests/modules/qemu/test_qemu_vm.py

@@ -138,9 +138,9 @@ def test_close(vm, port_manager, loop):
         loop.run_until_complete(asyncio.async(vm.close()))
 
         # Raise an exception if the port is not free
-        port_manager.reserve_console_port(console_port)
+        port_manager.reserve_tcp_port(console_port)
         # Raise an exception if the port is not free
-        port_manager.reserve_console_port(monitor_port)
+        port_manager.reserve_tcp_port(monitor_port)
 
         assert vm.is_running() is False