MP: Fix pendsv bug.
MP: Fix pendsv bug.

* Thanks to Rocky from NXP for finding and fixing the bug.

iabdalkader/openmv,openmv/openmv,iabdalkader/openmv,openmv/openmv,kwagyeman/openmv,openmv/openmv,iabdalkader/openmv,iabdalkader/openmv,kwagyeman/openmv,kwagyeman/openmv,openmv/openmv,kwagyeman/openmv