fujitsu-laptop: replace strcpy -> strscpy

strcpy() performs no bounds checking on the destination buffer. This
could result in linear overflows beyond the end of the buffer, leading
to all kinds of misbehaviors.[1]

[1]: https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy

Signed-off-by: Abdul Rahim <[e-mail]>
Acked-by: Jonathan Woithe <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Reviewed-by: Ilpo Järvinen <[e-mail]>
Signed-off-by: Ilpo Järvinen <[e-mail]>

drivers/platform/x86/fujitsu-laptop.c

···
 		return -ENOMEM;
 
 	fujitsu_bl = priv;
-	strcpy(acpi_device_name(device), ACPI_FUJITSU_BL_DEVICE_NAME);
-	strcpy(acpi_device_class(device), ACPI_FUJITSU_CLASS);
+	strscpy(acpi_device_name(device), ACPI_FUJITSU_BL_DEVICE_NAME);
+	strscpy(acpi_device_class(device), ACPI_FUJITSU_CLASS);
 	device->driver_data = priv;
 
 	pr_info("ACPI: %s [%s]\n",
···
 	WARN_ONCE(fext, "More than one FUJ02E3 ACPI device was found.  Driver may not work as intended.");
 	fext = device;
 
-	strcpy(acpi_device_name(device), ACPI_FUJITSU_LAPTOP_DEVICE_NAME);
-	strcpy(acpi_device_class(device), ACPI_FUJITSU_CLASS);
+	strscpy(acpi_device_name(device), ACPI_FUJITSU_LAPTOP_DEVICE_NAME);
+	strscpy(acpi_device_class(device), ACPI_FUJITSU_CLASS);
 	device->driver_data = priv;
 
 	/* kfifo */