MAINTAINERS: Remove unsupported statuses - Odd Fixes and Obsolete

The MAINTAINERS file was copied from Linux Kernel along with all its
statuses of maintainership.  However tools/genboardscfg.py accepts only
Maintained, Supported and Orphan.  Remove then the Odd Fixes and
Obsolete from MAINTAINERS file to avoid confusion.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

MAINTAINERS

@@ -12,13 +12,8 @@ Descriptions of section entries:
 	S: Status, one of the following:
 	   Supported:	Someone is actually paid to look after this.
 	   Maintained:	Someone actually looks after it.
-	   Odd Fixes:	It has a maintainer but they don't have time to do
-			much other than throw the odd patch in. See below..
 	   Orphan:	No current maintainer [but maybe you could take the
 			role as you write your new code].
-	   Obsolete:	Old code. Something tagged obsolete generally means
-			it has been replaced by a better system and you
-			should be using that.
 	F: Files and directories with wildcard patterns.
 	   A trailing slash includes all files and subdirectory files.
 	   F:	drivers/net/	all files in and below drivers/net