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/asm-mips/asm/break.h b/libc/kernel/uapi/asm-mips/asm/break.h
index 7834e51..d7f3089 100644
--- a/libc/kernel/uapi/asm-mips/asm/break.h
+++ b/libc/kernel/uapi/asm-mips/asm/break.h
@@ -26,9 +26,11 @@
 #define BRK_RANGE 8
 #define BRK_BUG 12
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define BRK_UPROBE 13
+#define BRK_UPROBE_XOL 14
 #define BRK_MEMU 514
 #define BRK_KPROBE_BP 515
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define BRK_KPROBE_SSTEPBP 516
 #define BRK_MULOVF 1023
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif