maintainers: Add William Kennington

William has:
  - improved the code maintainability through refactoring and unit
tests.
  - added significant features like static neighbor support.
  - has significant contributions in-flight.
  - has the most contributions to the project second only to Ratan.

William has earned commit privileges.

Change-Id: I96470a0dc54fc2220d4e7529b0ed1af4554c662f
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index ff7b170..8776dd2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -43,6 +43,7 @@
 -------------------------
 
 M:  Ratan Gupta <ratagupt@linux.vnet.ibm.com> <rgupta!>
+M:  William Kennington <wak@google.com> <wak-work!>
 R:  Adriana Kobylak <anoo@us.ibm.com> <anoo!>
 R:  Nagaraju Goruganti <ngorugan@in.ibm.com>
-R:  Dave Cobbley <david.j.cobbley@linux.intel.com>
\ No newline at end of file
+R:  Dave Cobbley <david.j.cobbley@linux.intel.com>