maintainers: add some, remove some

Remove myself.  I'm not able to keep up.
Add Matt and Devender, both active in the project.

Change-Id: Icf3ee0e15285f15e46c9a5b731a11fe87eca7339
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index ef4b908..06a2764 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -42,5 +42,5 @@
 START OF MAINTAINERS LIST
 -------------------------
 
-M:  Brad Bishop <bradleyb@fuzziesquirrel.com> <radsquirrel!>
-R:  Marri Devender Rao <devenrao@in.ibm.com> <devenrao!>
+M:  Marri Devender Rao <devenrao@in.ibm.com> <devenrao!>
+M:  Matthew Barth <msbarth@linux.ibm.com> <msbarth!>