Reject flow label key and mask values with invalid bits set.
Introduced by commit 3fdbd1ce ("openvswitch: add ipv6 'set'
action").
Signed-off-by: NJarno Rajahalme <jrajahalme@nicira.com>
Acked-by: NJesse Gross <jesse@nicira.com>
Signed-off-by: NPravin B Shelar <pshelar@nicira.com>