Support for Nvidia AGX Thor

* In the standard cloud confidential computing setup, an Intel CPU supporting TDX is used in concert with an Nvidia GPU, such as the H100/H200.

* The new Nvidia AGX Thor does not have an Intel CPU, but a custom ARM CPU - the 14-core ​​Arm® Neoverse®-V3AE 64-bit CPU​​.

* That uses the 'Arm Confidential Computing Architecture' and the 'Armv9.2-A Realm Management Extension' (RME)

* Are there plans to add support for the Arm CC to Dstack? If so, do you need help with that?