luci-app-nut: fix wrong nut_server option

There is no driver_path prefix in the original lua code.

f6e6b055d5/applications/luci-app-nut/luasrc/model/cbi/nut_server.lua (L132-L135)

Currently the uci configuration file does not require this path prefix by default.

Closes #7542

Signed-off-by: Tianshuai Gao <cocopriestyu+github@gmail.com>
Signed-off-by: Paul Donald <newtwen+github@gmail.com>

applications/luci-app-nut/htdocs/luci-static/resources/view/nut/nut_server.js

@@ -160,7 +160,7 @@ return view.extend({
 		o = s.option(form.ListValue, 'driver', _('Driver'),
 			_('If this list is empty you need to %s'.format('<a href="/cgi-bin/luci/admin/system/package-manager?query=nut-driver-">%s</a>'.format(_('install drivers')))));
 		driver_list.forEach(driver => {
-			o.value(driver_path + driver);
+			o.value(driver);
 		});
 		o.optional = false;