Export flags used in FlaggedApi annotations

Before calling a flagged API, client code must check the value of the flag
which gates it. Those flags must be exported in order to be accessible from
containers other than the container where the flag and the API are hosted.

Bug: 320984775
Bug: 322839671

Test: m all_aconfig_declarations
Test: printflags --format='{fully_qualified_name}:{is_exported}' | grep true

Change-Id: Ibadca88fccae9a68a22548f76889f3247f6135e0
diff --git a/flags/telecom_api_flags.aconfig b/flags/telecom_api_flags.aconfig
index c0f4cba..5ecd477 100644
--- a/flags/telecom_api_flags.aconfig
+++ b/flags/telecom_api_flags.aconfig
@@ -3,6 +3,7 @@
 
 flag {
   name: "voip_app_actions_support"
+  is_exported: true
   namespace: "telecom"
   description: "When set, Telecom support for additional VOIP application actions is active."
   bug: "296934278"
@@ -10,6 +11,7 @@
 
 flag {
   name: "call_details_id_changes"
+  is_exported: true
   namespace: "telecom"
   description: "When set, call details/extras id updates to Telecom APIs for Android V are active."
   bug: "301713560"
@@ -17,6 +19,7 @@
 
 flag{
   name: "add_call_uri_for_missed_calls"
+  is_exported: true
   namespace: "telecom"
   description: "The key is used for dialer apps to mark missed calls as read when it gets the notification on reboot."
   bug: "292597423"
@@ -24,6 +27,7 @@
 
 flag{
   name: "set_mute_state"
+  is_exported: true
   namespace: "telecom"
   description: "transactional calls need the ability to mute the call audio input"
   bug: "310669304"
@@ -31,6 +35,7 @@
 
 flag{
   name: "get_registered_phone_accounts"
+  is_exported: true
   namespace: "telecom"
   description: "When set, self-managed clients can get their own phone accounts"
   bug: "317132586"
@@ -38,6 +43,7 @@
 
 flag{
   name: "transactional_video_state"
+  is_exported: true
   namespace: "telecom"
   description: "when set, clients using transactional implementations will be able to set & get the video state"
   bug: "311265260"
@@ -45,6 +51,7 @@
 
 flag{
   name: "business_call_composer"
+  is_exported: true
   namespace: "telecom"
   description: "Enables enriched calling features (e.g. Business name will show for a call)"
   bug: "311688497"
@@ -53,6 +60,7 @@
 
 flag{
   name: "get_last_known_cell_identity"
+  is_exported: true
   namespace: "telecom"
   description: "Formalizes the getLastKnownCellIdentity API that Telecom reliees on as a system api"
   bug: "327454165"