Update libgui OWNERS

Adding the rest of the display team

Test: N/A
Change-Id: Ie777b5c71e91a1ee086372f5e2f1508d8c9258d2
diff --git a/libs/gui/OWNERS b/libs/gui/OWNERS
index 73150dc..c13401d 100644
--- a/libs/gui/OWNERS
+++ b/libs/gui/OWNERS
@@ -1,7 +1,12 @@
+adyabr@google.com
+akrulec@google.com
+alecmouri@google.com
 jessehall@google.com
 jwcai@google.com
 lpy@google.com
 marissaw@google.com
 mathias@google.com
 racarr@google.com
+steventhomas@google.com
 stoza@google.com
+vhau@google.com