MT#58762 Fix typo in swagger documentation

Fix typo of commit 308a974059
that was causing to fail the generation of the the swagger
documentation with the message:

ngcp-panel: ERROR: Couldn't render template "api/root.tt: file error - parse error - api/root/collection.tt line 112: unexpected token (=)#012  [% IF f.query_type = 'wildcard' %]"
Change-Id: I35882b97b2a86a7f54829f017ab1cb19b3b9f6e5
(cherry picked from commit 1474584b60)
(cherry picked from commit 65b8e5739b)

share/templates/api/root/collection.tt

@@ -109,7 +109,7 @@ See description how to obtain properties, if any.
 
 <ul id="[% id %]-qparams">
 [% FOREACH f IN col.query_params -%]
-[% IF f.query_type = 'wildcard' -%]
+[% IF f.query_type == 'wildcard' -%]
     <li><b>[% f.param %]</b>: [% f.description _ ' ' _ ' (prefix search, * wildcards supported, note that leading or intermediate wildcards can be slow)' %]</li>
 [% ELSE -%]
     <li><b>[% f.param %]</b>: [% f.description %]</li>