Merge tag 'efi-2023-10-rc2' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request for efi-2023-10-rc2

Documentation:

* Update the documentation for TI K3 boards (use SVG images)
* Update doc/sphinx/requirements.txt
* Describe QEMU emulation of block devices

UEFI

* Fix device paths for special block devices