bnhd: Write out updated resource dependencies from the table.

The driver parsed the table to update the relevant resource map
registers, but failed to write the new register value after computing
it.

Reported by: -Wunused-but-set-variable
Reviewed by: landonf, imp
Differential Revision: https://reviews.freebsd.org/D34814

(cherry picked from commit 3cebca152b183a87c48a3d36610569f2b4865261)