scripts/oe-selftest: avoid the creation of coverage file when coverage not installed
Coverage subprocessing file is being created even when coverage
is not installed, which causes errors of "module not found" to
be send to the oe-selftest output.
This patch adds indent to the block of code creating this coverage
file, so it can only be executed when coverage is actually
installed.
[Yocto #9334]
Signed-off-by: Humberto Ibarra <humberto.ibarra.lopez@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
