Add IpSecService SEPolicy

Add a new type and context for IpSec to system SEPolicy

Bug: 35923241
Test: service starts + talks to NetD
Change-Id: I69356c8525b426d344fcc4858fc499ab12405b20
(cherry picked from commit 641b1a7a)

private/service_contexts

@@ -66,6 +66,7 @@ iphonesubinfo2                            u:object_r:radio_service:s0
 iphonesubinfo                             u:object_r:radio_service:s0
 ims                                       u:object_r:radio_service:s0
 imms                                      u:object_r:imms_service:s0
+ipsec                                     u:object_r:ipsec_service:s0
 isms_msim                                 u:object_r:radio_service:s0
 isms2                                     u:object_r:radio_service:s0
 isms                                      u:object_r:radio_service:s0

public/service.te

@@ -80,6 +80,7 @@ type hdmi_control_service, system_api_service, system_server_service, service_ma
 type input_method_service, app_api_service, ephemeral_app_api_service, system_server_service, service_manager_type;
 type input_service, app_api_service, ephemeral_app_api_service, system_server_service, service_manager_type;
 type imms_service, app_api_service, ephemeral_app_api_service, system_server_service, service_manager_type;
+type ipsec_service, app_api_service, ephemeral_app_api_service, system_server_service, service_manager_type;
 type jobscheduler_service, app_api_service, ephemeral_app_api_service, system_server_service, service_manager_type;
 type launcherapps_service, app_api_service, ephemeral_app_api_service, system_server_service, service_manager_type;
 type location_service, app_api_service, ephemeral_app_api_service, system_server_service, service_manager_type;