[media] dvb_ca_en50221: use foo *bar, instead of foo * bar

Make checkpatch happier by fixing this warning:
  ERROR: "foo * bar" should be "foo *bar"

Signed-off-by: Jasmin Jessich <jasmin@anw.at>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>