[media] ivtv-alsa: Remove EXPERIMENTAL from Kconfig and revise Kconfig help text

Remove the (somewhat meaningless?) dependency on EXPERIMENTAL for the
ivtv-alsa driver.  Revise the Kconfig help text to be a little clearer for
the lay person, while we are here.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/pci/ivtv/Kconfig

@@ -29,12 +29,17 @@ config VIDEO_IVTV
 	  module will be called ivtv.
 
 config VIDEO_IVTV_ALSA
-	tristate "Conexant cx23415/cx23416 PCM audio capture support"
-	depends on VIDEO_IVTV && SND && EXPERIMENTAL
+	tristate "Conexant cx23415/cx23416 ALSA interface for PCM audio capture"
+	depends on VIDEO_IVTV && SND
 	select SND_PCM
 	---help---
-	  This is an ALSA interface driver for direct PCM audio capture from
-	  Conexant cx23415/cx23416 based PCI TV cards using the ivtv driver.
+	  This driver provides an ALSA interface as another method for user
+	  applications to obtain PCM audio data from Conexant cx23415/cx23416
+	  based PCI TV cards supported by the ivtv driver.
+
+	  The ALSA interface has much wider use in user applications performing
+	  PCM audio capture, than the V4L2 "/dev/video24" PCM audio interface
+	  provided by the main ivtv driver.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called ivtv-alsa.