init: add support for global seccomp boot option

Setting androidboot.seccomp=global on the kernel command line shall
enable seccomp for all processes rather than just in zygote. Doing
this has a performance impact, for now it shall just be used to audit
syscall usage during testing.

Bug: 37960259
Change-Id: I6b9fc95e9bec5e2bcfe6ef0b4343a5b422e30152
diff --git a/init/Android.mk b/init/Android.mk
index 325614e..667521e 100644
--- a/init/Android.mk
+++ b/init/Android.mk
@@ -77,6 +77,7 @@
     libcutils \
     libbase \
     libc \
+    libseccomp_policy \
     libselinux \
     liblog \
     libcrypto_utils \