V4L/DVB (4516): Split audio/video encoders/decoders from main drivers

Several audio/video encoders/decoders were just bound as if they were 
part of the core driver.
In fact, they are generic enough to be used by other drivers as well, 
since they use I2C event bus to communicate.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index 31a5646..a2fda43 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -135,7 +135,7 @@
 
 config VIDEO_SAA5246A
 	tristate "SAA5246A, SAA5281 Teletext processor"
-	depends on I2C && VIDEO_V4L1
+	depends on I2C && VIDEO_V4L2
 	help
 	  Support for I2C bus based teletext using the SAA5246A or SAA5281
 	  chip. Useful only if you live in Europe.
@@ -145,7 +145,7 @@
 
 config VIDEO_SAA5249
 	tristate "SAA5249 Teletext processor"
-	depends on VIDEO_DEV && I2C && VIDEO_V4L1
+	depends on VIDEO_DEV && I2C && VIDEO_V4L2
 	help
 	  Support for I2C bus based teletext using the SAA5249 chip. At the
 	  moment this is only useful on some European WinTV cards.
@@ -162,7 +162,7 @@
 
 config VIDEO_VINO
 	tristate "SGI Vino Video For Linux (EXPERIMENTAL)"
-	depends on I2C && SGI_IP22 && EXPERIMENTAL && VIDEO_V4L1
+	depends on I2C && SGI_IP22 && EXPERIMENTAL && VIDEO_V4L2
 	select I2C_ALGO_SGI
 	help
 	  Say Y here to build in support for the Vino video input system found
@@ -260,7 +260,7 @@
 
 config VIDEO_MXB
 	tristate "Siemens-Nixdorf 'Multimedia eXtension Board'"
-	depends on PCI && VIDEO_V4L1 && I2C
+	depends on PCI && VIDEO_V4L1
 	select VIDEO_SAA7146_VV
 	select VIDEO_TUNER
 	---help---
@@ -272,9 +272,8 @@
 
 config VIDEO_DPC
 	tristate "Philips-Semiconductors 'dpc7146 demonstration board'"
-	depends on PCI && VIDEO_V4L1 && I2C
+	depends on PCI && VIDEO_V4L1
 	select VIDEO_SAA7146_VV
-	select VIDEO_V4L2
 	---help---
 	  This is a video4linux driver for the 'dpc7146 demonstration
 	  board' by Philips-Semiconductors. It's the reference design
@@ -287,9 +286,8 @@
 
 config VIDEO_HEXIUM_ORION
 	tristate "Hexium HV-PCI6 and Orion frame grabber"
-	depends on PCI && VIDEO_V4L1 && I2C
+	depends on PCI && VIDEO_V4L2
 	select VIDEO_SAA7146_VV
-	select VIDEO_V4L2
 	---help---
 	  This is a video4linux driver for the Hexium HV-PCI6 and
 	  Orion frame grabber cards by Hexium.
@@ -299,9 +297,8 @@
 
 config VIDEO_HEXIUM_GEMINI
 	tristate "Hexium Gemini frame grabber"
-	depends on PCI && VIDEO_V4L1 && I2C
+	depends on PCI && VIDEO_V4L2
 	select VIDEO_SAA7146_VV
-	select VIDEO_V4L2
 	---help---
 	  This is a video4linux driver for the Hexium Gemini frame
 	  grabber card by Hexium. Please note that the Gemini Dual