Change the feature flag for Hearing Aid behavior

Previously, this feature flag for Hearing Aid Profile is to disable the
profile on supported phone . This CL will reverse the logic and is
to enable the Hearing Aid profile on unsupported phone. This is to allow
testing of this profile on unsupported phone.

Test: Manual tests on different types of phones
Bug: 116861680
Change-Id: I7900ca68d15accd60ef4eb600c5ef20fbd229d9a
Merged-In: I7900ca68d15accd60ef4eb600c5ef20fbd229d9a
(cherry picked from commit b116d4527bdac57a4ae6ef9937c8b763100eaf38)
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 9a0973c..a213973 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -395,8 +395,7 @@
         </service>
         <service
             android:process="@string/process"
-            android:name = ".hearingaid.HearingAidService"
-            android:enabled="@bool/profile_supported_hearing_aid">
+            android:name = ".hearingaid.HearingAidService">
             <intent-filter>
                 <action android:name="android.bluetooth.IBluetoothHearingAid" />
             </intent-filter>