Sepolicy for system suspend HAL.

Bug: 78888165
Test: device can boot with HAL running.
Change-Id: I3bf7c8203e038b892176c97ec006152a2904c7be
diff --git a/private/file_contexts b/private/file_contexts
index 6c75385..003d66c 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -279,6 +279,7 @@
 /system/bin/wpantund             u:object_r:wpantund_exec:s0
 /system/bin/virtual_touchpad     u:object_r:virtual_touchpad_exec:s0
 /system/bin/hw/android\.hidl\.allocator@1\.0-service          u:object_r:hal_allocator_default_exec:s0
+/system/bin/hw/android\.system\.suspend@1\.0-service          u:object_r:hal_system_suspend_default_exec:s0
 /system/etc/selinux/mapping/[0-9]+\.[0-9]+\.cil       u:object_r:sepolicy_file:s0
 /system/etc/selinux/plat_mac_permissions\.xml u:object_r:mac_perms_file:s0
 /system/etc/selinux/plat_property_contexts  u:object_r:property_contexts_file:s0