insane.bbclass: package_qa_check_license -> populate_lic_qa_checksum

insane.bbclass: package_qa_check_license -> populate_lic_qa_checksum

The package_qa_check_license() was in do_qa_configure which had a
potential problem, when the recipe sets do_configure[noexec] = "1", then
the license checking won't run, which may hidden license issues. Rename
it to populate_lic_qa_checksum() and run in do_populate_lic[postfuncs] which
is more reasonable (when no populate license, no license checking).

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>