MAINTAINERS: update EDAC entry to reflect current tree and maintainers

Tony will start to officially maintain EDAC trees. Also, we'll
be using a single tree for the EDAC development.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Tony Luck <tony.luck@intel.com>

MAINTAINERS

@@ -5781,10 +5781,10 @@ F:	drivers/edac/thunderx_edac*
 EDAC-CORE
 M:	Borislav Petkov <bp@alien8.de>
 M:	Mauro Carvalho Chehab <mchehab@kernel.org>
+M:	Tony Luck <tony.luck@intel.com>
 R:	James Morse <james.morse@arm.com>
 L:	linux-edac@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git for-next
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac.git linux_next
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras.git edac-for-next
 S:	Supported
 F:	Documentation/admin-guide/ras.rst
 F:	Documentation/driver-api/edac.rst