V4L/DVB (6247): Fix bug #8689: Fixes IR stop/start during suspend/resume

IR workqueue should be disabled during suspend. This avoids some troubles, like
the one reported on bug #8689:

"The Hauppauge HVR 1100 ir-remote control does not work after resume from
suspend to ram or disk."

This patch disables IR before suspending, re-enabling it after resume.

Thanks to Peter Poklop <Peter.Poklop@gmx.at> for reporting it and helping with
the fix.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Reviewed-by: Peter Poklop <Peter.Poklop@gmx.at>
diff --git a/drivers/media/video/cx88/cx88-core.c b/drivers/media/video/cx88/cx88-core.c
index 41f7f37..7161548 100644
--- a/drivers/media/video/cx88/cx88-core.c
+++ b/drivers/media/video/cx88/cx88-core.c
@@ -1084,6 +1084,9 @@
 EXPORT_SYMBOL(cx88_core_get);
 EXPORT_SYMBOL(cx88_core_put);
 
+EXPORT_SYMBOL(cx88_ir_start);
+EXPORT_SYMBOL(cx88_ir_stop);
+
 /*
  * Local variables:
  * c-basic-offset: 8