sh64: Use the shared FPU state restorer.

This kills off the sh64-specific state restorer and switches over to
the generic one.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index 67fbcee..23fbd92 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -114,8 +114,7 @@
 	regs = (struct pt_regs*)((unsigned char *)task + THREAD_SIZE) - 1;
 
 	if (!tsk_used_math(task)) {
-		fpinit(&task->thread.xstate->hardfpu);
-		set_stopped_child_used_math(task);
+		init_fpu(task);
 	} else if (last_task_used_math == task) {
 		enable_fpu();
 		save_fpu(task);