MAINTAINERS: zram: zsmalloc: Add an additional co-maintainer

Move Sergey to co-maintainer for zram/zsmalloc since he has helped to
contribute/review those areas actively for eight years, which is quite
helpful.  Since Nitin has been inactive for several years, it's time to
move his name into CREDITS.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Minchan Kim <[email protected]>
Reviewed-by: Sergey Senozhatsky <[email protected]>
Cc: Nitin Gupta <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: minchank

CREDITS

@@ -1439,6 +1439,10 @@ N: Justin Guyett
 E: [email protected]
 D: via-rhine net driver hacking
 
+N: Nitin Gupta
+E: [email protected]
+D: zsmalloc memory allocator and zram block device driver
+
 N: Danny ter Haar
 E: [email protected]
 D: /proc/cpuinfo, reboot on panic , kernel pre-patch tester ;)

MAINTAINERS

@@ -23002,8 +23002,7 @@ F:	drivers/media/pci/zoran/
 
 ZRAM COMPRESSED RAM BLOCK DEVICE DRVIER
 M:	Minchan Kim <[email protected]>
-M:	Nitin Gupta <[email protected]>
-R:	Sergey Senozhatsky <[email protected]>
+M:	Sergey Senozhatsky <[email protected]>
 L:	[email protected]
 S:	Maintained
 F:	Documentation/admin-guide/blockdev/zram.rst
@@ -23016,8 +23015,7 @@ F:	drivers/tty/serial/zs.*
 
 ZSMALLOC COMPRESSED SLAB MEMORY ALLOCATOR
 M:	Minchan Kim <[email protected]>
-M:	Nitin Gupta <[email protected]>
-R:	Sergey Senozhatsky <[email protected]>
+M:	Sergey Senozhatsky <[email protected]>
 L:	[email protected]
 S:	Maintained
 F:	Documentation/mm/zsmalloc.rst