rt2800usb: merge a fix to slow down tx status polling (#13523)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38452 3c298f89-4303-0410-b956-a3cf2f4a3e73
netifd: various improvements

* Add ubus methods for global interface status
* Add ubus function to create nested interfaces
* Add protocol update notifications and hotplug legacy calls
* Fix: key to data elements point at wrong memory area
* Add support for source-restricted routes
* Add option "delegate" to toggle prefix delegation
* Reevaluate target routes also on interface update

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38453 3c298f89-4303-0410-b956-a3cf2f4a3e73
odhcpd: various bugfixes

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38454 3c298f89-4303-0410-b956-a3cf2f4a3e73