meta-aspeed: Document myself as maintainer

(From meta-aspeed rev: 4ff170e93fb8247873463927001c48556ef5ddbb)

Change-Id: I34b847973978502bb9d049c06b60a27b6fa68fe8
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-aspeed/MAINTAINERS b/meta-aspeed/MAINTAINERS
index 9b799c2..453d5e4 100644
--- a/meta-aspeed/MAINTAINERS
+++ b/meta-aspeed/MAINTAINERS
@@ -46,3 +46,4 @@
 # @openbmc and is synced by the maintainer using git-subtree. Please submit
 # changes against @openbmc.
 M:  Brad Bishop <bradleyb@fuzziesquirrel.com> <radsquirrel!>
+M:  Joel Stanley <joel@jms.id.au> <shenki!>