watchdog: ziirave_wdt: Remove VERSION_FMT defines and add sysfs newlines

Remove the ZIIRAVE_{BL,FW}_VERION_FMT defines since they're only used in
very few places. While at it, add newlines to sysfs outputs.

Suggested-By: Joe Perches <joe@perches.com>
Signed-off-by: Juerg Haefliger <juergh@canonical.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210520072918.76482-1-juergh@canonical.com


Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>