bitbake: toaster: apply filter only on selected attributes

bitbake: toaster: apply filter only on selected attributes

This fixes the filter from the main page: 'All builds' applied to the
table header. Once one is selected, the filter button for that respective
column will receive a title attribute which will show additional options
when you hover over it. Until now the additional option was active for
all filters buttons not only for the one selected. This also caused
malformed output in the case of the buttons which weren't among the
selected filter.

[YOCTO #5929]

(Bitbake rev: 50e7f8f3bcfdd5b3e1b7778bfaaa93a563aba45d)

Signed-off-by: Marius Avram <marius.avram@intel.com>
Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>