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/falloc.h b/libc/kernel/uapi/linux/falloc.h
index 9ea0b24..fb734e0 100644
--- a/libc/kernel/uapi/linux/falloc.h
+++ b/libc/kernel/uapi/linux/falloc.h
@@ -24,5 +24,6 @@
 #define FALLOC_FL_NO_HIDE_STALE 0x04
 #define FALLOC_FL_COLLAPSE_RANGE 0x08
 #define FALLOC_FL_ZERO_RANGE 0x10
-#endif
+#define FALLOC_FL_INSERT_RANGE 0x20
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#endif