Updated to v4.4.1 kernel headers.

Small modifications needed to allow compilation with the new headers:

- Manually modify bionic/libc/kernel/uapi/asm-mips/asm/siginfo.h to
  remove the uapi from the include.
- PR_XXX defines are now available for mips, so remove the definition
  from linker_mips.cpp.

Bug: 23789423
Change-Id: I6dc8a03b012426d3a937db15cb24d3a50fab5a8c
diff --git a/libc/kernel/uapi/linux/netconf.h b/libc/kernel/uapi/linux/netconf.h
index a9bf216..556ecaf 100644
--- a/libc/kernel/uapi/linux/netconf.h
+++ b/libc/kernel/uapi/linux/netconf.h
@@ -33,11 +33,12 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   NETCONFA_MC_FORWARDING,
   NETCONFA_PROXY_NEIGH,
+  NETCONFA_IGNORE_ROUTES_WITH_LINKDOWN,
   __NETCONFA_MAX
-};
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
 #define NETCONFA_MAX (__NETCONFA_MAX - 1)
 #define NETCONFA_IFINDEX_ALL - 1
 #define NETCONFA_IFINDEX_DEFAULT - 2
-#endif
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#endif