fix(lts): static check for coverity scan

Changing comparison branch from integration to lts-v2.8 for the check of
coverity coverage for new patches.

This is not the most robust option and should be revisited along with
the other static check comparisons to lts-v2.8

Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
Change-Id: Ifc7fece30df84e9c06b5f6d31d22ece788f81403
1 file changed