Merge tag 'efi-2023-07-rc7' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request efi-2023-07-rc7

Documentation:

* Fix links to Linux kernel documentation

UEFI:

* Fix memory leak in efidebug dh subcommand
* Fix underflow when calculating remaining variable store size
* Increase default variable store size to 64 KiB
* mkeficapsule: fix efi_firmware_management_capsule_header data type

diff --cc tools/eficapsule.h
Simple merge