x86: ptrace.c declare functions before they get used

Signed-off-by: NJaswinder Singh <jaswinder@infradead.org>

include/asm-x86/ptrace.h

@@ -148,6 +148,9 @@ extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 #endif
 
+extern long syscall_trace_enter(struct pt_regs *);
+extern void syscall_trace_leave(struct pt_regs *);
+
 static inline unsigned long regs_return_value(struct pt_regs *regs)
 {
 	return regs->ax;