isdn/gigaset: enable Kernel CAPI support by default

Kernel CAPI has been the recommended ISDN subsystem for the Gigaset
driver since kernel release 2.6.34.2. It provides full backwards
compatibility to the old I4L subsystem thanks to the capidrv module.
I4L has been marked as deprecated for more than seven years.
Signed-off-by: NTilman Schmidt <tilman@imap.cc>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/isdn/gigaset/Kconfig

@@ -20,7 +20,7 @@ if ISDN_DRV_GIGASET
 config GIGASET_CAPI
 	bool "Gigaset CAPI support"
 	depends on ISDN_CAPI='y'||(ISDN_CAPI='m'&&ISDN_DRV_GIGASET='m')
-	default ISDN_I4L='n'
+	default 'y'
 	help
 	  Build the Gigaset driver as a CAPI 2.0 driver interfacing with
 	  the Kernel CAPI subsystem. To use it with the old ISDN4Linux