make libjsoncpp available for init and in VNDK

init_second_stage needs to parse cgroups.json file and therefore
requires libjsoncpp. Make it available for init on recovery partition.
Also add libjsoncpp into vndk because libprocessgroup needs it.

Exempt-From-Owner-Approval: janitorial

Bug: 111307099
Test: builds, boots

Change-Id: I8cd589f02fd7beef351f5962e1a257418e253f6c
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
diff --git a/Android.bp b/Android.bp
index dafcb8f..3209f02 100644
--- a/Android.bp
+++ b/Android.bp
@@ -34,7 +34,12 @@
     name: "libjsoncpp",
     defaults: ["libjsoncpp_defaults"],
     vendor_available: true,
+    vndk: {
+        enabled: true,
+        support_system_process: true,
+    },
     host_supported: true,
+    recovery_available: true,
 }
 
 cc_library_static {