Update the changelog for the 1.8.0 release.
Signed-off-by:Jens Elofsson <jens.elofsson@arm.com> Approved-by:
Anton Bondarenko <anton.bondarenko@arm.com> Approved-by:
Jakub Sujak <jakub.sujak@arm.com>
Signed-off-by:Jens Elofsson <jens.elofsson@arm.com> Approved-by:
Anton Bondarenko <anton.bondarenko@arm.com> Approved-by:
Jakub Sujak <jakub.sujak@arm.com>