Rules for new installd Binder interface.

Most of this CL mirrors what we've already done for the "netd" Binder
interface, while sorting a few lists alphabetically.

Migrating installd to Binder will allow us to get rid of one of
the few lingering text-based command protocols, improving system
maintainability and security.

Test: builds, boots
Bug: 13758960, 30944031
Change-Id: I59b89f916fd12e22f9813ace6673be38314c97b7
diff --git a/private/service_contexts b/private/service_contexts
index 9269c2c..43d0552 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -56,6 +56,7 @@
 inputflinger                              u:object_r:inputflinger_service:s0
 input_method                              u:object_r:input_method_service:s0
 input                                     u:object_r:input_service:s0
+installd                                  u:object_r:installd_service:s0
 iphonesubinfo_msim                        u:object_r:radio_service:s0
 iphonesubinfo2                            u:object_r:radio_service:s0
 iphonesubinfo                             u:object_r:radio_service:s0