Add recovery_available: true to libseccomp_policy

Init needs this in order to be built in Android.bp

Test: build

Change-Id: I0ce67a3c84cf476b28be039b9c9b345bc381de7b
diff --git a/libc/seccomp/Android.bp b/libc/seccomp/Android.bp
index ae99857..232024f 100644
--- a/libc/seccomp/Android.bp
+++ b/libc/seccomp/Android.bp
@@ -1,5 +1,6 @@
 cc_library {
     name: "libseccomp_policy",
+    recovery_available: true,
     srcs: [
         "seccomp_policy.cpp",
         "arm_app_policy.cpp",