Add OWNERS file to omapi

Copy original OMAPI OWNERS file to new OMAPI folder.

Test: build pass
Change-Id: Ib5343917591c9fff3e4dd16d20d539ee78c85eeb
diff --git a/omapi/OWNERS b/omapi/OWNERS
new file mode 100644
index 0000000..5682fd3
--- /dev/null
+++ b/omapi/OWNERS
@@ -0,0 +1,5 @@
+# Bug component: 456592
+
+zachoverflow@google.com
+alisher@google.com
+jackcwyu@google.com