Fix two typos in the Sunxi thermal driver.

Noticed by rudolf in PR port-arm/53537.

ok jmcneill@

(bsiegert)

dhcp: Fix classless static routes

Assign the netwask correctly from the message.

Cherry-picked from upstream in
https://dev.marples.name/rDHC510c760cb24ef4b1b16cc14732c5ffe0fbb0d96d.

This fixes route assignments when running on Google Compute Engine,
which uses classless static routes.

(bsiegert)