vendor: add sepolicy entry for killswitch service

Change-Id: Ib3c44c50138f5715d92addbf8df7ed591785b550
Signed-off-by: Roman Birg <roman@cyngn.com>
(cherry picked from commit 2ca5d3999b35d328f0969a264009bffe0faf889d)
diff --git a/sepolicy/service_contexts b/sepolicy/service_contexts
index 9e9706c..a6b5cc7 100644
--- a/sepolicy/service_contexts
+++ b/sepolicy/service_contexts
@@ -2,3 +2,4 @@
 edgegestureservice                        u:object_r:system_server_service:s0
 themes                                    u:object_r:system_server_service:s0
 torch                                     u:object_r:system_server_service:s0
+killswitch                                u:object_r:system_server_service:s0