datapath: reorder action netlink attribute definition for upstreaming

Keeping the order of netlink attribute definition in the order of
upstreaming is the best way to keep all released user space program
forward compatible with upstreamed kernel modules.

Adjust action netlink attribute order to match with the current
upstreaming plan.

Recirc and hash actions are introduced in branch 2.3, which will be
fixed by the patch. The MPLS actions have been released since
branch-2.1 but there is no kernel implementation of them prior to
branch 2.3. Thus the ordering change should not affect them.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
cfm: Reduce "long delay" message from WARN to INFO, to match BFD behavior.

These messages can cause the testsuite to fail on a busy build machine
since the testsuite treats WARN or ERR log messages as failures.  BFD
uses an INFO message instead of WARN, so this just changes CFM to match.

Alternatively, the testsuite could ignore "long delay" messages (it ignores
some other categories of messages).  In that case I'd expect that we'd
want to change BFD to match CFM since I don't know of a reason why they
should log differently.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Justin Pettit <jpettit@nicira.com>