Make ipsec resource as SystemApi

Make config_optionalIpSecAlgorithms @SystemApi so that it can
be used in mainline module.

Bug: 204153604
Test: FrameworksNetTests
Change-Id: Ia082f0e1749f1399bd0b41dab6612744cc67e62a
Merged-In: Ia082f0e1749f1399bd0b41dab6612744cc67e62a
diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index 1fde724..3e06fbf 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -316,6 +316,7 @@
 
   public static final class R.array {
     field public static final int config_keySystemUuidMapping = 17235973; // 0x1070005
+    field public static final int config_optionalIpSecAlgorithms;
   }
 
   public static final class R.attr {
diff --git a/core/res/res/values/public.xml b/core/res/res/values/public.xml
index 5f89588..6ef5bd4 100644
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
@@ -3239,6 +3239,8 @@
     </staging-public-group>
 
     <staging-public-group type="array" first-id="0x01d90000">
+      <!-- @hide @SystemApi -->
+      <public name="config_optionalIpSecAlgorithms" />
     </staging-public-group>
 
     <staging-public-group type="drawable" first-id="0x01d80000">