storaged: add storaged_pri service

"storaged" service will be used by external clients, e.g. vold, dumpsys
"storaged_pri" service will only be used by storaged cmdline.

Bug: 63740245
Change-Id: I7a60eb4ce321aced9589bbb8474d2d9e75ab7042
(cherry picked from commit 37ab7c0917b26f8e1d7f4ff865838c5488b0b0af)
diff --git a/prebuilts/api/26.0/private/service_contexts b/prebuilts/api/26.0/private/service_contexts
index dc77cb9..ff97d66 100644
--- a/prebuilts/api/26.0/private/service_contexts
+++ b/prebuilts/api/26.0/private/service_contexts
@@ -142,6 +142,7 @@
 soundtrigger                              u:object_r:voiceinteraction_service:s0
 statusbar                                 u:object_r:statusbar_service:s0
 storaged                                  u:object_r:storaged_service:s0
+storaged_pri                              u:object_r:storaged_service:s0
 storagestats                              u:object_r:storagestats_service:s0
 SurfaceFlinger                            u:object_r:surfaceflinger_service:s0
 task                                      u:object_r:task_service:s0
diff --git a/private/service_contexts b/private/service_contexts
index 8656b4e..8b9b862 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -153,6 +153,7 @@
 soundtrigger                              u:object_r:voiceinteraction_service:s0
 statusbar                                 u:object_r:statusbar_service:s0
 storaged                                  u:object_r:storaged_service:s0
+storaged_pri                              u:object_r:storaged_service:s0
 storagestats                              u:object_r:storagestats_service:s0
 SurfaceFlinger                            u:object_r:surfaceflinger_service:s0
 system_update                             u:object_r:system_update_service:s0