selftests: mlxsw: rename tc_flower_restrictions.sh to tc_restrictions.sh

The file is about to contain matchall restrictions too, so change the
name to make it more generic.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_flower_restrictions.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_restrictions.sh
similarity index 100%
rename from tools/testing/selftests/drivers/net/mlxsw/tc_flower_restrictions.sh
rename to tools/testing/selftests/drivers/net/mlxsw/tc_restrictions.sh