Introducing status field to MAINTAINERS?

[Stephen Hemminger]

While going through the old patches, noticed some that are in parts
of DPDK that are pretty much abandoned.

My suggestion would be introduce a subsystem status field in MAINTAINERS
similar to what is done in Linux kernel.

	S: *Status*, one of the following:
	   Supported:	Someone is actually paid to look after this.
	   Maintained:	Someone actually looks after it.
	   Odd Fixes:	It has a maintainer but they don't have time to do
			much other than throw the odd patch in. See below..
	   Orphan:	No current maintainer [but maybe you could take the
			role as you write your new code].
	   Obsolete:	Old code. Something tagged obsolete generally means
			it has been replaced by a better system and you
			should be using that.