util: generate fully qualified paths for cscope
util: generate fully qualified paths for cscope

Change-Id: I318c185b117b9608110544526fbaaa3fdcdeb8bc
Signed-off-by: Gedare Bloom <5c1c253d6e3470c2ab06478d531dc050f0e1ce25@rtems.org>
Reviewed-on: https://gem5-review.googlesource.com/3260
Reviewed-by: Jason Lowe-Power <68c46a606457643eab92053c1c05574abb26f861@lowepower.com>
Maintainer: Jason Lowe-Power <68c46a606457643eab92053c1c05574abb26f861@lowepower.com>

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