[needs-packaging] Add package linux-sgx for Intel SGX support

[Hector CAO]

SGX is a Intel CPU hardware feature that enabled the creation of execution enclaves. It leverages Intel® Total Memory Encryption – Multi-Key (TME-MK) to allow the enclaves memory to be encrypted and thus protected from all other code running on the CPU.

Unfortunately, applications do not “just work” on SGX. SGX imposes a number of restrictions on enclave
code that require application changes or a layer of indirection.

This package introduces:
 - the SGX SDK : used to build SGX confidential applications/enclaces.
 - the SGX runtime that will allow SGX enclaves to run.

This work is motivated by the support for another more recent and advanced Intel confidential
computing technology : Intel TDX that is supported in 25.10 (Questing). Indeed, to achieve the
quote generation for remote attestation, Intel TDX make use of an SGX enclave.

Upstream: https://github.com/intel/linux-sgx/
Version: 2.26
PPA: https://launchpad.net/~hectorcao/+archive/ubuntu/ubuntu-contrib
Source package name: linux-sgx

[Brian Murray (brian-murray)]

*** This is an automated message ***

This bug is tagged needs-packaging which identifies it as a request for a new package in Ubuntu. As a part of the managing needs-packaging bug reports specification, https://wiki.ubuntu.com/QATeam/Specs/NeedsPackagingBugs, all needs-packaging bug reports have Wishlist importance. Subsequently, I'm setting this bug's status to Wishlist.