Updated to v4.4.1 kernel headers.

Bug: 23789423
Change-Id: I45ef68b3955c1f4d91ed53db8c519fce64d57f09
diff --git a/original/uapi/asm-arm64/asm/ptrace.h b/original/uapi/asm-arm64/asm/ptrace.h
index 6913643..208db3d 100644
--- a/original/uapi/asm-arm64/asm/ptrace.h
+++ b/original/uapi/asm-arm64/asm/ptrace.h
@@ -44,6 +44,7 @@
 #define PSR_I_BIT	0x00000080
 #define PSR_A_BIT	0x00000100
 #define PSR_D_BIT	0x00000200
+#define PSR_PAN_BIT	0x00400000
 #define PSR_Q_BIT	0x08000000
 #define PSR_V_BIT	0x10000000
 #define PSR_C_BIT	0x20000000