[bt] Inject Profile Test Server Component.

The profile test server component is required to run the tests.
Update READMEs to suggest including the profile tests group

Test: Run integration tests successfully after OTA

Change-Id: I67866a33c86d1bed62b9702483700a5ef0698c70
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/514651
Reviewed-by: Ani Ramakrishnan <aniramakri@google.com>
Fuchsia-Auto-Submit: Jeff Belgum <belgum@google.com>
Commit-Queue: Auto-Submit <auto-submit@fuchsia-infra.iam.gserviceaccount.com>
diff --git a/src/connectivity/bluetooth/profiles/tests/BUILD.gn b/src/connectivity/bluetooth/profiles/tests/BUILD.gn
index 67beaba..1022f90 100644
--- a/src/connectivity/bluetooth/profiles/tests/BUILD.gn
+++ b/src/connectivity/bluetooth/profiles/tests/BUILD.gn
@@ -12,5 +12,8 @@
 
     # Mock cobalt component that is injected into the integration tests.
     "//src/cobalt/bin/testing/mock_cobalt",
+
+    # Profile test server component that is injected into the integration tests.
+    "//src/connectivity/bluetooth/testing/bt-profile-test-server",
   ]
 }
diff --git a/src/connectivity/bluetooth/profiles/tests/bt-a2dp-loopback/README.md b/src/connectivity/bluetooth/profiles/tests/bt-a2dp-loopback/README.md
index e23ab4d..a762cf7 100644
--- a/src/connectivity/bluetooth/profiles/tests/bt-a2dp-loopback/README.md
+++ b/src/connectivity/bluetooth/profiles/tests/bt-a2dp-loopback/README.md
@@ -8,7 +8,7 @@
 
 ## Build Configuration
 
-Include `--with //src/connectivity/bluetooth/profiles/tests/bt-a2dp-loopback` in your `fx set`.
+Include `--with //src/connectivity/bluetooth/profiles/tests` in your `fx set`.
 
 To run:
 
diff --git a/src/connectivity/bluetooth/profiles/tests/bt-a2dp-source-integration-tests/README.md b/src/connectivity/bluetooth/profiles/tests/bt-a2dp-source-integration-tests/README.md
index f19464c..81dc1ff 100644
--- a/src/connectivity/bluetooth/profiles/tests/bt-a2dp-source-integration-tests/README.md
+++ b/src/connectivity/bluetooth/profiles/tests/bt-a2dp-source-integration-tests/README.md
@@ -2,8 +2,10 @@
 
 ## Build Configuration
 
-Include `--with //src/connectivity/bluetooth/profiles/tests/bt-a2dp-source-integration-tests` in your `fx set`.
+Include in your build args via `fx set` or `fx args`:
+
+`//src/connectivity/bluetooth/profiles/tests`
 
 To run the integration tests:
 
-`fx test bt-a2dp-source-integration-tests`
\ No newline at end of file
+`fx test bt-a2dp-source-integration-tests`
diff --git a/src/connectivity/bluetooth/profiles/tests/bt-avrcp-integration-tests/README.md b/src/connectivity/bluetooth/profiles/tests/bt-avrcp-integration-tests/README.md
index 8f6d81a..23be8a3 100644
--- a/src/connectivity/bluetooth/profiles/tests/bt-avrcp-integration-tests/README.md
+++ b/src/connectivity/bluetooth/profiles/tests/bt-avrcp-integration-tests/README.md
@@ -2,8 +2,8 @@
 
 ## Build Configuration
 
-Include `--with //src/connectivity/bluetooth/profiles/tests/bt-avrcp-integration-tests` in your `fx set`.
+Include `--with //src/connectivity/bluetooth/profiles/tests` in your `fx set`.
 
 To run the integration tests:
 
-`fx test bt-avrcp-integration-tests`
\ No newline at end of file
+`fx test bt-avrcp-integration-tests`
diff --git a/src/connectivity/bluetooth/profiles/tests/bt-hfp-audio-gateway-integration-tests/README.md b/src/connectivity/bluetooth/profiles/tests/bt-hfp-audio-gateway-integration-tests/README.md
index ac40519..81da348 100644
--- a/src/connectivity/bluetooth/profiles/tests/bt-hfp-audio-gateway-integration-tests/README.md
+++ b/src/connectivity/bluetooth/profiles/tests/bt-hfp-audio-gateway-integration-tests/README.md
@@ -2,7 +2,9 @@
 
 ## Build Configuration
 
-Include `--with //src/connectivity/bluetooth/profiles/tests/bt-hfp-audio-gateway-integration-tests` in your `fx set`.
+Include in your build args via `fx set` or `fx args`:
+
+`//src/connectivity/bluetooth/profiles/tests`
 
 To run the integration tests: