V4L/DVB: dvb-usb: prepare drivers for using rc-core

This is a big patch, yet trivial. It just move the RC properties
to a separate struct, in order to prepare the dvb-usb drivers to
use rc-core. There's no change on the behavior of the drivers.

With this change, it is possible to have both legacy and rc-core
based code inside the dvb-usb-remote, allowing a gradual migration
to rc-core, driver per driver.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/dvb-usb/a800.c b/drivers/media/dvb/dvb-usb/a800.c
index 5580383..a5c3637 100644
--- a/drivers/media/dvb/dvb-usb/a800.c
+++ b/drivers/media/dvb/dvb-usb/a800.c
@@ -146,10 +146,12 @@
 	.power_ctrl       = a800_power_ctrl,
 	.identify_state   = a800_identify_state,
 
-	.rc_interval      = DEFAULT_RC_INTERVAL,
-	.rc_key_map       = ir_codes_a800_table,
-	.rc_key_map_size  = ARRAY_SIZE(ir_codes_a800_table),
-	.rc_query         = a800_rc_query,
+	.rc.legacy = {
+		.rc_interval      = DEFAULT_RC_INTERVAL,
+		.rc_key_map       = ir_codes_a800_table,
+		.rc_key_map_size  = ARRAY_SIZE(ir_codes_a800_table),
+		.rc_query         = a800_rc_query,
+	},
 
 	.i2c_algo         = &dibusb_i2c_algo,