Represent hidden classes' subclass definitions in partial signature files

Partial signature files should represent all delta between the API
surfaces. This include the definition of subclasses that are modified
when it extends a class that is hidden for some API surfaces.

This change adds the currently missing such information to the signature
files.

Bug: 295032200
Test: m update-api
Merged-In: Ia9875891d9b6a42ca7f569b1eeb1c62eb2d56a7c
Merged-In: Ib89368db3e069de7701f75d786b7c8e96bd0a456
Change-Id: Idb6c8c6cad637ba23d2f72a0d065f0342f93da41
diff --git a/api/system-current.txt b/api/system-current.txt
index f354230..9a412cc 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -5,6 +5,12 @@
     method @Deprecated @Nullable public android.net.eap.EapSessionConfig.EapMsChapV2Config getEapMsChapV2onfig();
   }
 
+  public static class EapSessionConfig.EapAkaConfig extends android.net.eap.EapSessionConfig.EapUiccConfig {
+  }
+
+  public static class EapSessionConfig.EapSimConfig extends android.net.eap.EapSessionConfig.EapUiccConfig {
+  }
+
   @Deprecated public abstract static class EapSessionConfig.EapUiccConfig extends android.net.eap.EapSessionConfig.EapMethodConfig {
     method @Deprecated public int getAppType();
     method @Deprecated public int getSubId();