V4L/DVB (6152): cx23885: forward compatibility fixes for recent kernels

- fix #include for <media/video-buf-dvb.h>
- fix cx23885_irq declaration for 2.6.19 and later
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/cx23885/cx23885-core.c

@@ -1361,7 +1361,7 @@ static void cx23885_timeout(unsigned long data)
 #define VID_C_MSK_RISCI2  (1 <<  4)
 #define VID_C_MSK_RISCI1   1
 
-static irqreturn_t cx23885_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t cx23885_irq(int irq, void *dev_id)
 {
 	struct cx23885_dev *dev = dev_id;
 	struct cx23885_tsport *port = &dev->ts2;

drivers/media/video/cx23885/cx23885.h

@@ -28,7 +28,9 @@
 #include <media/tuner.h>
 #include <media/tveeprom.h>
 #include <media/video-buf.h>
+#if defined(CONFIG_VIDEO_BUF_DVB) || defined(CONFIG_VIDEO_BUF_DVB_MODULE)
 #include <media/video-buf-dvb.h>
+#endif
 
 #include "btcx-risc.h"
 #include "cx23885-reg.h"