Merge tag 'efi-2023-01-rc5-4' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request efi-2023-01-rc5-4

UEFI:

* correct the vexpress loaddr which collides with memory used by EFI
* consider the EFI memory map for LMB memory reservation
* avoid RWX section warnings for .data section of *_efi.so files