MAINTAINERS: change maintainer for FSI

Due to job transitions, both Joel and Jeremy can no longer maintain
the FSI subsystem. I will take over.
I also replaced Alistair with Ninad as a reviewer, as Alistair doesn't
have access to hardware and hasn't been active.
I also removed the link to Joel's FSI tree as he won't be maintaining
it.

Signed-off-by: Eddie James <[e-mail]>
Acked-by: Jeremy Kerr <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

MAINTAINERS

···
 F:	include/uapi/linux/fscrypt.h
 
 FSI SUBSYSTEM
-M:	Jeremy Kerr <[e-mail]>
-M:	Joel Stanley <[e-mail]>
-R:	Alistar Popple <[e-mail]>
-R:	Eddie James <[e-mail]>
+M:	Eddie James <[e-mail]>
+R:	Ninad Palsule <[e-mail]>
 L:	[e-mail]
 S:	Supported
 Q:	http://patchwork.ozlabs.org/project/linux-fsi/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi.git
 F:	drivers/fsi/
 F:	include/linux/fsi*.h
 F:	include/trace/events/fsi*.h