Fix modes of test files

Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
diff --git a/testsuite/tests/cbq.t b/testsuite/tests/cbq.t
old mode 100644
new mode 100755
diff --git a/testsuite/tests/cls-testbed.t b/testsuite/tests/cls-testbed.t
old mode 100644
new mode 100755
diff --git a/testsuite/tests/dsmark.t b/testsuite/tests/dsmark.t
old mode 100644
new mode 100755
diff --git a/testsuite/tests/policer b/testsuite/tests/policer
old mode 100644
new mode 100755