acl: fix intermittent test failure

acl: fix intermittent test failure

ACL tests use random port number in the tests.
A port number 6081 causes the decode in scapy
to consume some of the Raw payload into GENEVE
encoding, which breaks the test.

Solution: bring up the lower range of random
port to 16384, so that it does not touch any
of the well known ports.

Type: test
Change-Id: I022660d8ec147857924b436f1871b0b5ddcf4c47
Signed-off-by: Andrew Yourtchenko <[email protected]>
(cherry picked from commit ec574ff9129a7cc4282916d2a989e88d78aaff60)