Feature: ArteryTek AT32F437/435 Read protection unlocking

[ALTracer]

Detailed description

• This is close to a new feature, but basically I cloned a couple existing functions and extended timeouts.
• The existing problem is BMD internally timing out after 250ms after issuing a RDP1 degrade command (erase option bytes and write 0x5aa5) of which the latter takes ~14 seconds of DP WAIT because it is going through a mass erase of F437ZM 4032 KiB flash.
• This PR solves it by using a couple different ADIv5 raw_access functions with extended timeouts and progress printout.

Tested to allow regression from RDP1 to Open state on AT-START-F437 via BMP or BMDA, via SWD or JTAG transport. I have no idea how to implement the same for CMSIS-DAP, JLink, FTDI and other backends. I don't expect this to be merged as-is, rather I publish a hacked working example of what must be done. Maybe there's a better way of repurposing existing drivers to not take up so much code flash of BMP (ENABLE_ARTERY is already opt-in). This is based on top of #1949 branch, just two new commits.

Your checklist for this pull request

• I've read the Code of Conduct
• I've read the guidelines for contributing to this repository
• It builds for hardware native (see Building the firmware)
• It builds as BMDA (see Building the BMDA)
• I've tested it to the best of my ability
• My commit messages provide a useful short description of what the commits do

Closing issues