Change SHAREDIR=/home/gmacario/easy-build/build-yocto/shared

Fix Issue https://github.com/gmacario/easy-build/issues/43

Signed-off-by: Gianpaolo Macario <gianpaolo_macario@mentor.com>
Merge pull request #83 from gmacario/fix-issue43

Change SHAREDIR=/home/gmacario/easy-build/build-yocto/shared