OWNERS: promote Zev to maintainer

Zev is an active reviewer of this repository and seems to have a
good handle on the needs from a user perspective.  Suggest promoting
him to maintainer to aid in responsiveness to reviews on this repo.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Id00825858f55582d0bb1f72657fe3fcc5b03eed1
diff --git a/OWNERS b/OWNERS
index 9bd0328..f65c6ca 100644
--- a/OWNERS
+++ b/OWNERS
@@ -34,9 +34,9 @@
 owners:
 - eajames@linux.ibm.com
 - jae.hyun.yoo@linux.intel.com
+- zev@bewilderbeest.net
 
 reviewers:
-- zev@bewilderbeest.net
 
 matchers: