Use the __oeqa_testtags attribute added by OETestTag and display no, one
or more tags separated by a comma. Also change the formatting of the
output so that the list of tests is formatted as "<test> (<tags>)" and
remove the table header for "id" (it is no longer available).
Signed-off-by: Nathan Rossi <nathan@nathanrossi.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>