ARM: hisi: use the correct HiSilicon copyright

s/Hisilicon/HiSilicon/
It should use capital S, according to
https://www.hisilicon.com/en/terms-of-use.
Signed-off-by: Hao Fang <fanghao11@huawei.com>
Acked-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>

arch/arm/mach-hisi/hisilicon.c

 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * (Hisilicon's SoC based) flattened device tree enabled machine
+ * (HiSilicon's SoC based) flattened device tree enabled machine
  *
- * Copyright (c) 2012-2013 Hisilicon Ltd.
+ * Copyright (c) 2012-2013 HiSilicon Ltd.
  * Copyright (c) 2012-2013 Linaro Ltd.
  *
  * Author: Haojian Zhuang <haojian.zhuang@linaro.org>

arch/arm/mach-hisi/hotplug.c

 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2013 Linaro Ltd.
- * Copyright (c) 2013 Hisilicon Limited.
+ * Copyright (c) 2013 HiSilicon Limited.
  */
 
 #include <linux/cpu.h>

arch/arm/mach-hisi/platmcpm.c

 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2013-2014 Linaro Ltd.
- * Copyright (c) 2013-2014 Hisilicon Limited.
+ * Copyright (c) 2013-2014 HiSilicon Limited.
  */
 #include <linux/init.h>
 #include <linux/smp.h>

arch/arm/mach-hisi/platsmp.c

 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2013 Linaro Ltd.
- * Copyright (c) 2013 Hisilicon Limited.
+ * Copyright (c) 2013 HiSilicon Limited.
  * Based on arch/arm/mach-vexpress/platsmp.c, Copyright (C) 2002 ARM Ltd.
  */
 #include <linux/smp.h>