validation: time: remove print and add verbose faults
validation: time: remove print and add verbose faults

Having system call inside loop couse unpredictable delay
as the result wrong time diff calculation. Just removing
print make hole test execution shorter on 0.1 seconds
according to cunit stats. Also make verbose errors in
places where we out of limit in cunit. This should be
very helpful to understand DELAY_TOLERANCE value suitable
for all platforms.

Signed-off-by: Maxim Uvarov <db4d16e02ae2d7493db430203537da8b2e34f290@linaro.org>
Reviewed-by: Bill Fischofer <52f3c909d51cc5d355a68a403df6906b3c1a8f83@linaro.org>

dkrot/odp,mike-holmes-linaro/odp,erachmi/odp,mike-holmes-linaro/odp,ravineet-singh/odp,nmorey/odp,nmorey/odp,erachmi/odp,ravineet-singh/odp,ravineet-singh/odp,dkrot/odp,dkrot/odp,dkrot/odp,mike-holmes-linaro/odp,mike-holmes-linaro/odp,nmorey/odp,erachmi/odp,nmorey/odp,ravineet-singh/odp,erachmi/odp