Fix FileNotFound jacoco.exec in sal poms and remove duplicate jacoco

Fix FileNotFound jacoco.exec in sal poms and remove duplicate jacoco
setting from pom.

The parent module should not have the jacoco plugin in plugins section, because it causes all the modules, even those without tests to inherit it.
Removed it from parent pom (kept it only in plugins management section)and added it to relevant poms of modules that have tests.

Change-Id: I4d33da1e490a7260d6f7809496dd67d10a45aca9
Signed-off-by: Alissa Bonas <abonas@redhat.com>