media: atomisp: drop hmm_page_type

Since the hmm-pool code has been removed this now always gets set
to HMM_PAGE_TYPE_GENERAL, so just remove it.

Link: https://lore.kernel.org/linux-media/20220615205037.16549-16-hdegoede@redhat.com


Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>