media: redrat3: no unnecessary GFP_ATOMIC

During resume() GFP_NOIO will do.
No need for GFP_ATOMIC

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>