feat(qemu-sbsa): handle the information of CPU topology

We add the support for adding cpus/topology to device tree in sbsaQemu
platform, and we can get this information via SMC calls:

- counting the number of sockets
- counting the number of clusters in one socket
- counting the number of cores in one cluster
- counting the number of threads in one core

Signed-off-by: Xiong Yining <xiongyining1480@phytium.com.cn>
Change-Id: I0059a5c7bb7055aba1aa5ec5bfd0ec78801874f8
1 file changed