tree 33db63840f53e4d26ed3934be84e91f041b6eead
parent d51207e7c42106d101f612a83a8a07628a17dcd9
author Roberto Vargas <roberto.vargas@arm.com> 1527165293 +0100
committer Roberto Vargas <roberto.vargas@arm.com> 1533292299 +0100

Add atexit function to libc

We had exit but we didn't have atexit, and we were calling panic and
tf_printf from exit, which generated a dependency from exit to them.
Having atexit allows to set a different function pointer in every image.

Change-Id: I95b9556d680d96249ed3b14da159b6f417da7661
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>