media: dvb-frontends/Kconfig: move the SP2 driver to the CI section

The CIMaX SP2 driver is a EN50221 CI controller I2C driver similar to the
cxd2099 driver. Move it's Kconfig block into the newly introduced CI
subsection.

Cc: Olli Salonen <olli.salonen@iki.fi>
Cc: Antti Palosaari <crope@iki.fi>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/dvb-frontends/Kconfig

@@ -824,13 +824,6 @@ config DVB_A8293
 	depends on DVB_CORE && I2C
 	default m if !MEDIA_SUBDRV_AUTOSELECT
 
-config DVB_SP2
-	tristate "CIMaX SP2"
-	depends on DVB_CORE && I2C
-	default m if !MEDIA_SUBDRV_AUTOSELECT
-	help
-	  CIMaX SP2/SP2HF Common Interface module.
-
 config DVB_LGS8GL5
 	tristate "Silicon Legend LGS-8GL5 demodulator (OFDM)"
 	depends on DVB_CORE && I2C
@@ -920,6 +913,13 @@ config DVB_CXD2099
 
 	  Say Y when you want to support these devices.
 
+config DVB_SP2
+	tristate "CIMaX SP2"
+	depends on DVB_CORE && I2C
+	default m if !MEDIA_SUBDRV_AUTOSELECT
+	help
+	  CIMaX SP2/SP2HF Common Interface module.
+
 comment "Tools to develop new frontends"
 
 config DVB_DUMMY_FE