media: rc: ite-cir: replace some an EN DASH

Instead of using U+2013 ('–'): EN DASH, let's just use an
hyphen there, as this was probably introduced by some cut-and-paste
from some other place.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/rc/ite-cir.h

@@ -167,7 +167,7 @@ struct ite_dev {
  * hardware data obtained from:
  *
  * IT8712F
- * Environment Control – Low Pin Count Input / Output
+ * Environment Control - Low Pin Count Input / Output
  * (EC - LPC I/O)
  * Preliminary Specification V0. 81
  */