Also do some tidying of the config and set the
default timezone to nothing, to prevent hiccups on
rc.shutdown
Signed-off-by: Aaron Griffin <aaronmgriffin@gmail.com>
The previous code handled timezone changes poorly when
fiddling with the hwclock. Add localtime/UTC selection
for the hwclock to circumvent this
Signed-off-by: Aaron Griffin <aaronmgriffin@gmail.com>