Build: Set install messages policy to lazy

This allows to avoid printing Up-to-date messages when
installing files at the end of the SPE build, hence
reduces flooding of the build output keeping only the
Installing relevant messages, especially on incremental
rebuilds.

Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
Change-Id: Iec793795dfc9d5dffab73e451c1ba49683989790
2 files changed