[MediaContent] Fix not working findItem function, when title Filter.

[MediaContent] Fix not working findItem function, when title Filter.

[Title] Fix not working findItem function.
[Issue] N_SE-1229, N_SE-7294, N_SE-7296
[Problem] when the title search, the search results not.
[Cause] The Image Type, title column is empty.
[Solution] including file name condition to the sql statement.
[SCMRequest] N/A

Test Done.

Signed-off-by: Dongjin Choi <milkelf.choi@samsung.com>