Add myself as a maintainer

I've written a few of the tools in here and am involved
in a lot of the reviews so would like to be able to
merge commits

Change-Id: Iaa77be460fa47f6a441913a6a394d29dbbcfaf68
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 0adf656..5bd8db2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -43,4 +43,4 @@
 -------------------------
 
 M:  Andrew Jeffery <andrew@aj.id.au> <amboar!>
-R:  Andrew Geissler <geissonator@yahoo.com> <AndrewG!>
\ No newline at end of file
+M:  Andrew Geissler <geissonator@yahoo.com> <AndrewG!>