Add SurfaceFlinger component to OWNERS for SF, RE, and libgui

Raised on b/288345762#comment3

go/xts-owners-policy is XTS-specific, but the syntax is applicable

Bug: N/A
Test: N/A
Change-Id: I97e95ad89f0226e196675cbbf7bf0fd3a948b5a2
diff --git a/libs/renderengine/OWNERS b/libs/renderengine/OWNERS
index 5d23a5e..66e1aa1 100644
--- a/libs/renderengine/OWNERS
+++ b/libs/renderengine/OWNERS
@@ -1,3 +1,5 @@
+# Bug component: 1075131
+
 adyabr@google.com
 alecmouri@google.com
 djsollen@google.com