[PATCH] add Mike Isely as pvrusb2 maintainer

Update MAINTAINERS with contact info for Mike Isely, the PVRUSB2
maintainer, while also adding the pvrusb2 mailing list and web site.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>