sh: Move arch/sh64/kernel/sys_sh64.c to arch/sh/kernel/

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

arch/sh/kernel/Makefile_64

 extra-y	:= head.o init_task.o vmlinux.lds
 
 obj-y	:= debugtraps.o io.o io_generic.o irq.o machvec.o process_64.o \
-	   ptrace_64.o semaphore.o setup.o signal_64.o sys_sh.o syscalls.o \
+	   ptrace_64.o semaphore.o setup.o signal_64.o sys_sh64.o syscalls.o \
 	   time.o topology.o traps.o
 
 obj-y				+= cpu/ timers/