Fix build tool with ARMC6/ARMv8M#6644

Merged

cmonr merged 3 commits intoARMmbed:masterfrom

OpenNuvoton:nuvoton_fix_armc6_armv8m

Apr 27, 2018

Commits on Apr 16, 2018

Fix build tool with ARMC6/ARMv8M
ccli8
committed

Commits on Apr 17, 2018

Correct exporting with cortex-M23 and M33
theotherjimmy
committed

Commits on Apr 24, 2018

Correct test finding behavior
theotherjimmy
committed