Merge tag 'efi-2023-10-rc4' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request efi-2023-10-rc4

Documentation:

* describe TPL/VPL/SPL boot
* Add support for sphinx-prompt and convert TI K3 to use it
* board: sdm845: Explicitly add boot.img flashing command

EFI:

* remove handle from events when deleting it

Others:

* fix gpt sub-commands setenv and enumerate
* add a parameter check in hash_calculate()