arch: add cortex-m0plus support
Created by: Joe-Zhucg
Change-Id: I7e5d13af6574a3d0466e81aa7b548df24f9871b9
Please note upcoming urgent maintenance: Wednesday 18th September 17:00 BST - 22:00 BST
Created by: Joe-Zhucg
Change-Id: I7e5d13af6574a3d0466e81aa7b548df24f9871b9