This patch adds the ability to generate files in drcov format. Primary
goal this script is to have coverage logfiles thatwork in Lighthouse.

Signed-off-by: Ivanov Arkady <arkadiy.ivanov@ispras.ru>
Message-Id: <163491884553.304355.13246023070235438959.stgit@pc-System-Product-Name>
[AJB: use g_ptr_array instead of slist]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220204204335.1689602-23-alex.bennee@linaro.org>