Less traces in Travis
Less traces in Travis

Verbose of tar is removed so that the complete build trace is available in the
Travis console, without having to look at the raw data.

Reviewed-by: Jens Wiklander <7706914404370d7502c27a0eff493dcf491feb51@linaro.org>
Signed-off-by: Pascal Brand <0b55292d2562685bad4ce52d64f802e8f1cd299e@st.com>

cedric-chaumont-st-dev/optee_os,Microsoft/optee_os,BreezeWu/optee_os,BreezeWu/optee_os,cedric-chaumont-st-dev/optee_os,jamescfkung/optee_os,Microsoft/optee_os,chshxi1989/optee_os,BreezeWu/optee_os,Microsoft/optee_os,chshxi1989/optee_os,pascal-brand-st-dev/optee_os,BreezeWu/optee_os,jamescfkung/optee_os,matt2048/optee_os,cedric-chaumont-st-dev/optee_os,cedric-chaumont-st-dev/optee_os,matt2048/optee_os,matt2048/optee_os,matt2048/optee_os,Microsoft/optee_os,chshxi1989/optee_os,pascal-brand-st-dev/optee_os,pascal-brand-st-dev/optee_os,jamescfkung/optee_os,chshxi1989/optee_os,Microsoft/optee_os,jamescfkung/optee_os,jamescfkung/optee_os,pascal-brand-st-dev/optee_os,BreezeWu/optee_os,pascal-brand-st-dev/optee_os,chshxi1989/optee_os