MAINTAINERS: Adjust pstore git repo URI, add files

The tree used for staging pstore changes has moved to my repo. The -next
tree already pulls from here, so update MAINTAINERS to reflect reality.
While at it, add some more pstore-related files to track.
Signed-off-by: NKees Cook <keescook@chromium.org>

MAINTAINERS

@@ -9968,16 +9968,19 @@ S:	Maintained
 F:	drivers/block/ps3vram.c
 
 PSTORE FILESYSTEM
+M:	Kees Cook <keescook@chromium.org>
 M:	Anton Vorontsov <anton@enomsg.org>
 M:	Colin Cross <ccross@android.com>
-M:	Kees Cook <keescook@chromium.org>
 M:	Tony Luck <tony.luck@intel.com>
 S:	Maintained
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/pstore
 F:	fs/pstore/
 F:	include/linux/pstore*
 F:	drivers/firmware/efi/efi-pstore.c
 F:	drivers/acpi/apei/erst.c
+F:	Documentation/admin-guide/ramoops.rst
+F:	Documentation/devicetree/bindings/reserved-memory/ramoops.txt
+K:	\b(pstore|ramoops)
 
 PTP HARDWARE CLOCK SUPPORT
 M:	Richard Cochran <richardcochran@gmail.com>