media: atomisp: move a debug printf to a better place

The sensor width/height report is alread being printed after
its calculus. The only reason for an extra debug printk is
when dis is used. So, change its message to reflect and move
it to be inside the if checks.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>