V4L/DVB (3345): Fixes some bad global variables

- Debug global var is already used inside kernel.
- v4l_dbg now expects the debug var
- global vars inside msp34xx renamed to msp_*

Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

include/media/v4l2-common.h

@@ -49,9 +49,8 @@
 
 /* These three macros assume that the debug level is set with a module
    parameter called 'debug'. */
-#define v4l_dbg(level, client, fmt, arg...)				     \
+#define v4l_dbg(level, debug, client, fmt, arg...)			     \
 	do { 								     \
-		extern int debug;					     \
 		if (debug >= (level))					     \
 			v4l_client_printk(KERN_DEBUG, client, fmt , ## arg); \
 	} while (0)