Add IKEv2/IPsec VPN options

This change adds the relevant (English) strings for the IKEv2/IPsec
VPNs.

Bug: 143486740
Test: Compiles, new strings visible
Change-Id: I9b1914c80b453bab951a8eddc55546d0746fba91
diff --git a/res/values/arrays.xml b/res/values/arrays.xml
index 65d9c2e..d56c114 100644
--- a/res/values/arrays.xml
+++ b/res/values/arrays.xml
@@ -909,6 +909,9 @@
         <item>IPSec Xauth PSK</item>
         <item>IPSec Xauth RSA</item>
         <item>IPSec Hybrid RSA</item>
+        <item>IKEv2/IPSec MSCHAPv2</item>
+        <item>IKEv2/IPSec PSK</item>
+        <item>IKEv2/IPSec RSA</item>
     </string-array>
 
     <!-- Match this with the constants in VpnProfile. --> <skip />
@@ -920,6 +923,9 @@
         <item>IPSec VPN with pre-shared keys and Xauth authentication</item>
         <item>IPSec VPN with certificates and Xauth authentication</item>
         <item>IPSec VPN with certificates and hybrid authentication</item>
+        <item>IKEv2/IPSec VPN with certificates and username/password authentication</item>
+        <item>IKEv2/IPSec VPN with pre-shared keys</item>
+        <item>IKEv2/IPSec VPN with certificates</item>
     </string-array>
 
     <!-- VPN proxy settings. -->