dlx: Fix MDP bus scaling data

* These numbers are crazy and are way out of range, fix them.
* Improves display performance across the board.

Change-Id: Id075a06cd3e9b1335e8d248c76ef33c710a747b9
dlx: regenerate defconfig

* Enable correct Netfilter and security options
* Set correct TCP congestion avoidance options

Change-Id: I041288ef57624860d2633c39758a508fdefb8d7b