media: allegro-dvt: avoid EN DASH char

While there's nothing wrong with EN DASH on C code, this probably
came from some cut-and paste from an ITU-T table.
It sounds better to just an HYPHEN here.
Reviewed-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/platform/allegro-dvt/nal-h264.c

@@ -25,7 +25,7 @@
 #include "nal-rbsp.h"
 
 /*
- * See Rec. ITU-T H.264 (04/2017) Table 7-1 – NAL unit type codes, syntax
+ * See Rec. ITU-T H.264 (04/2017) Table 7-1 - NAL unit type codes, syntax
  * element categories, and NAL unit type classes
  */
 enum nal_unit_type {

drivers/media/platform/allegro-dvt/nal-hevc.c

@@ -25,7 +25,7 @@
 #include "nal-rbsp.h"
 
 /*
- * See Rec. ITU-T H.265 (02/2018) Table 7-1 – NAL unit type codes and NAL unit
+ * See Rec. ITU-T H.265 (02/2018) Table 7-1 - NAL unit type codes and NAL unit
  * type classes
  */
 enum nal_unit_type {