am 6a94cb74: Merge "arm syscall : for eabi call_default don\'t use stack"

# By Matthieu Castet
# Via Gerrit Code Review (1) and Matthieu Castet (1)
* commit '6a94cb748bf63278c3271b0ab610061b0dc6f04a':
  arm syscall : for eabi call_default don't use stack