sh: Move over and enable FPU support for SH-5.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c
index 069fb60..08f403e 100644
--- a/arch/sh/kernel/signal_64.c
+++ b/arch/sh/kernel/signal_64.c
@@ -211,9 +211,9 @@
 		return err;
 
 	if (current == last_task_used_math) {
-		grab_fpu();
+		enable_fpu();
 		fpsave(&current->thread.fpu.hard);
-		release_fpu();
+		disable_fpu();
 		last_task_used_math = NULL;
 		regs->sr |= SR_FD;
 	}