Add myself as a maintainer

I will be overseeing the code in this repository.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I719b4f1db756e11797f45c951a2c18bb52017407
diff --git a/MAINTAINERS b/MAINTAINERS
index 2c1cae0..d4aaf46 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -43,3 +43,4 @@
 -------------------------
 
 M:  Deepak Kodihalli <dkodihal@linux.vnet.ibm.com> <dkodihal!>
+M:  Matt Spinler <spinler@us.ibm.com> <mspinler!>