OWNERS: add Patrick Williams

Based on the github stats[1], I seem to have significantly more LOC
contribution to this repo than everyone else and 3rd in commits.

1. https://github.com/openbmc/openbmc-build-scripts/graphs/contributors

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ie006aca7520cf903d4e3741b8bdfc71c847c47b4
diff --git a/OWNERS b/OWNERS
index da2d1f1..968c0fe 100644
--- a/OWNERS
+++ b/OWNERS
@@ -34,6 +34,7 @@
 owners:
 - geissonator@yahoo.com
 - joel@jms.id.au
+- patrick@stwcx.xyz
 
 reviewers:
 - andrew@aj.id.au
@@ -54,3 +55,6 @@
 - name: Matthew Barth
   email: msbarth@linux.ibm.com
   discord: msbarth
+- name: Patrick Williams
+  email: patrick@stwcx.xyz
+  discord: stwcx