Linux/ProcessMonitor: include sys/user.h for user_regs_struct and user_fpregs_struct.

llvm-svn: 154255
diff --git a/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp b/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
index 6c35b7e..2f060df 100644
--- a/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
+++ b/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
@@ -15,6 +15,7 @@
 #include <sys/ptrace.h>
 #include <sys/socket.h>
 #include <sys/types.h>
+#include <sys/user.h>
 #include <sys/wait.h>
 
 // C++ Includes