media: pvrusb2: drop unexpected word 'a' in comments

there is an unexpected word 'a' in the comments that need to be dropped

file - drivers/media/usb/pvrusb2/pvrusb2-hdw.c
line - 5044

But now it's a a chicken and egg problem...) */

changed to:

But now it's a chicken and egg problem...) */
Signed-off-by: NJiang Jian <jiangjian@cdjrlc.com>
Signed-off-by: NHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/usb/pvrusb2/pvrusb2-hdw.c

@@ -5041,7 +5041,7 @@ void pvr2_hdw_status_poll(struct pvr2_hdw *hdw)
 	/* Note: There apparently is no replacement for VIDIOC_CROPCAP
 	   using v4l2-subdev - therefore we can't support that AT ALL right
 	   now.  (Of course, no sub-drivers seem to implement it either.
-	   But now it's a a chicken and egg problem...) */
+	   But now it's a chicken and egg problem...) */
 	v4l2_device_call_all(&hdw->v4l2_dev, 0, tuner, g_tuner, vtp);
 	pvr2_trace(PVR2_TRACE_CHIPS, "subdev status poll type=%u strength=%u audio=0x%x cap=0x%x low=%u hi=%u",
 		   vtp->type,