MAINTAINERS: Kdump maintainers update

I am proposing following updates to kdump maintainership.  I have got
busy in other things and not getting time to spend on kdump.

Remove Haren Myneni as he has not participated in kdump development for
a long time now.

Add the names of Dave and Baoquan as kdump maintainers as they have been
contributing to kdump for a long time now and they are in a much better
position to spend time on this than me.

Mark myself as a reviewer.

Link: http://lkml.kernel.org/r/20160525131616.GB27291@redhat.com


Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Simon Horman <horms@verge.net.au>
Cc: Haren Myneni <hbabu@us.ibm.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>