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/sem.h b/libc/kernel/uapi/linux/sem.h
index 04909d5..4f3632b 100644
--- a/libc/kernel/uapi/linux/sem.h
+++ b/libc/kernel/uapi/linux/sem.h
@@ -76,10 +76,10 @@
   int semaem;
 };
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define SEMMNI 128
-#define SEMMSL 250
+#define SEMMNI 32000
+#define SEMMSL 32000
 #define SEMMNS (SEMMNI * SEMMSL)
-#define SEMOPM 32
+#define SEMOPM 500
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SEMVMX 32767
 #define SEMAEM SEMVMX