MAINTAINERS: mark arch/blackfin/ and its gubbins as orphaned

The blackfin architecture has seen no maintainer action of any kind since
April 2015.  No new code, no pull requests, no acks to patches, no response
to mails, nothing.

The web site has an expired certificate (expiration Sep 2017, issued in
2013), the mailing list sees no answers either, with one exception:

  https://sourceforge.net/p/adi-buildroot/mailman/adi-buildroot-devel/
  >
  > Steven is no longer working on this for ADI. Acked by me if this works. Thanks.
  >
  > Best regards,
  > Aaron Wu
  > Analog Devices Inc.

But, Aaron doesn't seem to respond to queries either.
Signed-off-by: NAdam Borowski <kilobyte@angband.pl>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -2621,24 +2621,22 @@ F:	fs/bfs/
 F:	include/uapi/linux/bfs_fs.h
 
 BLACKFIN ARCHITECTURE
-M:	Steven Miao <realmz6@gmail.com>
 L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 T:	git git://git.code.sf.net/p/adi-linux/code
 W:	http://blackfin.uclinux.org
-S:	Supported
+S:	Orphan
 F:	arch/blackfin/
 
 BLACKFIN EMAC DRIVER
 L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:	http://blackfin.uclinux.org
-S:	Supported
+S:	Orphan
 F:	drivers/net/ethernet/adi/
 
 BLACKFIN MEDIA DRIVER
-M:	Scott Jiang <scott.jiang.linux@gmail.com>
 L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:	http://blackfin.uclinux.org/
-S:	Supported
+S:	Orphan
 F:	drivers/media/platform/blackfin/
 F:	drivers/media/i2c/adv7183*
 F:	drivers/media/i2c/vs6624*
@@ -2646,25 +2644,25 @@ F:	drivers/media/i2c/vs6624*
 BLACKFIN RTC DRIVER
 L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:	http://blackfin.uclinux.org
-S:	Supported
+S:	Orphan
 F:	drivers/rtc/rtc-bfin.c
 
 BLACKFIN SDH DRIVER
 L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:	http://blackfin.uclinux.org
-S:	Supported
+S:	Orphan
 F:	drivers/mmc/host/bfin_sdh.c
 
 BLACKFIN SERIAL DRIVER
 L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:	http://blackfin.uclinux.org
-S:	Supported
+S:	Orphan
 F:	drivers/tty/serial/bfin_uart.c
 
 BLACKFIN WATCHDOG DRIVER
 L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:	http://blackfin.uclinux.org
-S:	Supported
+S:	Orphan
 F:	drivers/watchdog/bfin_wdt.c
 
 BLINKM RGB LED DRIVER