kbuild: mailing list has moved

The old list at sourceforge had a few issues:
- it was subscriber-only
- it were relying on moderation

And I could see several mails did not get to the list lately
so I decided this was a good time for a new list.

I already requested marc.info to archieve the new list -
and I dunno where else the old list was archieved but we
ought to update.

I have no access to the list of subscribers on the old list
so people will have to subscribe manually.

How to subscribe:

send a mail to: majordomo@vger.kernel.org
containing following text:
subscribe linux-kbuild

See also http://vger.kernel.org/vger-lists.html

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

MAINTAINERS

@@ -2178,7 +2178,7 @@ S:	Maintained
 KCONFIG
 P:	Roman Zippel
 M:	zippel@linux-m68k.org
-L:	kbuild-devel@lists.sourceforge.net
+L:	linux-kbuild@vger.kernel.org
 S:	Maintained
 
 KDUMP
@@ -2207,6 +2207,7 @@ KERNEL BUILD (kbuild: Makefile, scripts/Makefile.*)
 P:	Sam Ravnborg
 M:	sam@ravnborg.org
 T:	git kernel.org:/pub/scm/linux/kernel/git/sam/kbuild.git
+L:	linux-kbuild@vger.kernel.org
 S:	Maintained
 
 KERNEL JANITORS