media: s5p-jpeg: set w/h when encoding

q_data w/h must be set when encoding.

Fixes: 1c84e7f9 (media: s5p-jpeg: Add support for resolution change event)

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>