[Telephony] Exposed PhysicalChannelConfigListener as public API instead of system

Bug: 182408018
Test: make
Change-Id: I294453b0c28b79e309063a1cd2f57644b3a6242c
diff --git a/core/api/current.txt b/core/api/current.txt
index 0e7ecef..2a9862c 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -40905,6 +40905,10 @@
     method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public void onMessageWaitingIndicatorChanged(boolean);
   }
 
+  public static interface TelephonyCallback.PhysicalChannelConfigListener {
+    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onPhysicalChannelConfigChanged(@NonNull java.util.List<android.telephony.PhysicalChannelConfig>);
+  }
+
   public static interface TelephonyCallback.PreciseDataConnectionStateListener {
     method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onPreciseDataConnectionStateChanged(@NonNull android.telephony.PreciseDataConnectionState);
   }
diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index a9e3fb5..a79806a 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -10021,10 +10021,6 @@
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void onPhoneCapabilityChanged(@NonNull android.telephony.PhoneCapability);
   }
 
-  public static interface TelephonyCallback.PhysicalChannelConfigListener {
-    method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onPhysicalChannelConfigChanged(@NonNull java.util.List<android.telephony.PhysicalChannelConfig>);
-  }
-
   public static interface TelephonyCallback.PreciseCallStateListener {
     method @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE) public void onPreciseCallStateChanged(@NonNull android.telephony.PreciseCallState);
   }
diff --git a/core/java/android/telephony/TelephonyCallback.java b/core/java/android/telephony/TelephonyCallback.java
index a2584cae..73ba003 100644
--- a/core/java/android/telephony/TelephonyCallback.java
+++ b/core/java/android/telephony/TelephonyCallback.java
@@ -1330,10 +1330,7 @@
 
     /**
      * Interface for current physical channel configuration listener.
-     *
-     * @hide
      */
-    @SystemApi
     public interface PhysicalChannelConfigListener {
         /**
          * Callback invoked when the current physical channel configuration has changed