platform/x86: touchscreen_dmi: Use 2-argument strscpy()

Use 2-argument strscpy(), which is not only shorter but also provides
an additional check that destination buffer is an array.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20240602090244.1666360-8-andy.shevchenko@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Author: andy-shev

drivers/platform/x86/touchscreen_dmi.c

@@ -1850,7 +1850,7 @@ static int __init ts_parse_props(char *str)
 	u32 u32val;
 	int i, ret;
 
-	strscpy(orig_str, str, sizeof(orig_str));
+	strscpy(orig_str, str);
 
 	/*
 	 * str is part of the static_command_line from init/main.c and poking