Add x86 Queens Bay (Tunnel Creek + Topcliff) platform support

New directory arch/x86/cpu/queensbay with minimum skeleton files.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Add Intel Crown Bay CRB support

New directory board/intel/crownbay with minimum skeleton files.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>