MAINTAINERS: Reclaim the P: tag for Maintainer Entry Profile

Fixup some P: entries to be M: and delete the others that do not include an
email address. The P: tag will be used to indicate the location of a
Profile for a given MAINTAINERS entry.

Cc: Joe Perches <joe@perches.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/r/157462918794.1729495.10838545318307341653.stgit@dwillia2-desk3.amr.corp.intel.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

MAINTAINERS

@@ -819,7 +819,7 @@ S:	Orphan
 F:	drivers/usb/gadget/udc/amd5536udc.*
 
 AMD GEODE PROCESSOR/CHIPSET SUPPORT
-P:	Andres Salomon <dilinger@queued.net>
+M:	Andres Salomon <dilinger@queued.net>
 L:	linux-geode@lists.infradead.org (moderated for non-subscribers)
 W:	http://www.amd.com/us-en/ConnectivitySolutions/TechnicalResources/0,,50_2334_2452_11363,00.html
 S:	Supported
@@ -10204,7 +10204,6 @@ F:	drivers/staging/media/tegra-vde/
 
 MEDIA INPUT INFRASTRUCTURE (V4L/DVB)
 M:	Mauro Carvalho Chehab <mchehab@kernel.org>
-P:	LinuxTV.org Project
 L:	linux-media@vger.kernel.org
 W:	https://linuxtv.org
 Q:	http://patchwork.kernel.org/project/linux-media/list/
@@ -13609,7 +13608,6 @@ S:	Maintained
 F:	arch/mips/ralink
 
 RALINK RT2X00 WIRELESS LAN DRIVER
-P:	rt2x00 project
 M:	Stanislaw Gruszka <sgruszka@redhat.com>
 M:	Helmut Schaa <helmut.schaa@googlemail.com>
 L:	linux-wireless@vger.kernel.org
@@ -13945,7 +13943,6 @@ S:	Supported
 F:	drivers/net/ethernet/rocker/
 
 ROCKETPORT DRIVER
-P:	Comtrol Corp.
 W:	http://www.comtrol.com
 S:	Maintained
 F:	Documentation/driver-api/serial/rocket.rst
@@ -14836,15 +14833,13 @@ F:	drivers/video/fbdev/simplefb.c
 F:	include/linux/platform_data/simplefb.h
 
 SIMTEC EB110ATX (Chalice CATS)
-P:	Ben Dooks
-P:	Vincent Sanders <vince@simtec.co.uk>
+M:	Vincent Sanders <vince@simtec.co.uk>
 M:	Simtec Linux Team <linux@simtec.co.uk>
 W:	http://www.simtec.co.uk/products/EB110ATX/
 S:	Supported
 
 SIMTEC EB2410ITX (BAST)
-P:	Ben Dooks
-P:	Vincent Sanders <vince@simtec.co.uk>
+M:	Vincent Sanders <vince@simtec.co.uk>
 M:	Simtec Linux Team <linux@simtec.co.uk>
 W:	http://www.simtec.co.uk/products/EB2410ITX/
 S:	Supported