data-aggregator: specifically limit to fspmethod 'basic'

In their current implementation, the data-aggregator scripts do not work
correctly on sampling results.

Change-Id: I1035970b352f513d725bd1a40ac9262368ffbcc0

tools/analysis/data-aggregator/symbol-occurrences.sh

@@ -8,6 +8,7 @@ FROM variant v
 INNER JOIN symbol s ON v.id = s.variant_id
 INNER JOIN trace t ON t.variant_id = v.id AND t.data_address BETWEEN s.address AND s.address + s.size - 1
 INNER JOIN fspgroup g ON t.variant_id = g.variant_id AND t.data_address = g.data_address AND t.instr2 = g.instr2
+	AND g.fspmethod_id = (SELECT id FROM fspmethod WHERE method = 'basic')
 INNER JOIN result_GenericExperimentMessage r ON r.pilot_id = g.pilot_id
 WHERE $FILTER
 GROUP BY v.id, s.name, r.resulttype