tc-tests: added path to ip command in tdc

This macro $IP will be used in upcoming tc tests, which require
to create interfaces etc.
Signed-off-by: NRoman Mashak <mrv@mojatatu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

tools/testing/selftests/tc-testing/tdc_config.py

@@ -10,6 +10,8 @@ Copyright (C) 2017 Lucas Bates <lucasb@mojatatu.com>
 NAMES = {
           # Substitute your own tc path here
           'TC': '/sbin/tc',
+          # Substitute your own ip path here
+          'IP': '/sbin/ip',
           # Name of veth devices to be created for the namespace
           'DEV0': 'v0p0',
           'DEV1': 'v0p1',