radeon_hd: DP AUX address is actually 20-bit

Change-Id: Ie551c6977cb4fb8b45ad896aedd0d3c6b0b183d8
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5172
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

radeon_hd: Drop dp config array from dp_info

* Caching these values could result in missed
state changes.
* We may want to re-implement later.
* Highlights that all DP AUX communication is broken
during my testing.

radeon_hd: AtomBIOS version bump. Encoder work.

* Now pulling in latest amdgpu atombios.h headers
* Lots of DisplayPort cleanup and removal of legacy stuff
* Add obsolete atombios header for things that disappear
(amdgpu doesn't support older cards like we do)
* Introduce new code to support later encoder tables
* Drop radeon-specific encoder service from common dp_info
* Tested on HD 5450 hdmi

accelerants/common: Add displayport aux message struct

radeon_hd: Better tracing. Fix DP ack bitwise shift

radeon_hd: display port improvements

* Remove non-generic radeon dp_get_lane_count
* Set lane count and link rate at set_display_mode
* Pass entire mode to pll_set vs only pixel clock for DP code
* Add helpers for DP config data to common code
* Obtain more correct link rate

radeon_hd: Move out some DisplayPort common code

* General DisplayPort functions in common dp.cpp
* DP port information struct in common header
* Please don't use this private accelerant common DP
code just yet as it is very early.

accelerants/common: Add displayport aux message struct

radeon_hd: Better tracing. Fix DP ack bitwise shift

radeon_hd: display port improvements

* Remove non-generic radeon dp_get_lane_count
* Set lane count and link rate at set_display_mode
* Pass entire mode to pll_set vs only pixel clock for DP code
* Add helpers for DP config data to common code
* Obtain more correct link rate

radeon_hd: Move out some DisplayPort common code

* General DisplayPort functions in common dp.cpp
* DP port information struct in common header
* Please don't use this private accelerant common DP
code just yet as it is very early.