sh: Provide dummy swapper pt_regs for SH-5 ctx switch.

Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh/kernel/init_task.c

@@ -11,8 +11,8 @@ static struct fs_struct init_fs = INIT_FS;
 static struct files_struct init_files = INIT_FILES;
 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
+struct pt_regs fake_swapper_regs;
 struct mm_struct init_mm = INIT_MM(init_mm);
-
 EXPORT_SYMBOL(init_mm);
 
 /*