pkg-stats: fix table layout

The "Patch count" cell needs rowspan=2, otherwise the host/target cells are
misaligned.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

support/scripts/pkg-stats

@@ -51,7 +51,7 @@ tr.correct td {
 <tr>
 <td rowspan=\"2\">Id</td>
 <td rowspan=\"2\">Package</td>
-<td>Patch count</td>
+<td rowspan=\"2\">Patch count</td>
 <td colspan=\"2\" class=\"centered\">AUTOTARGETS</td>
 <td colspan=\"2\" class=\"centered\">GENTARGETS</td>
 <td colspan=\"2\" class=\"centered\">CMAKETARGETS</td>