V4L/DVB (6961): tda18271: move common code to tda18271-common.c

Move some common code to a new file to make this easier to look at.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/dvb/frontends/tda18271.h b/drivers/media/dvb/frontends/tda18271.h
index b98a933..f535681 100644
--- a/drivers/media/dvb/frontends/tda18271.h
+++ b/drivers/media/dvb/frontends/tda18271.h
@@ -1,7 +1,7 @@
 /*
     tda18271.h - header for the Philips / NXP TDA18271 silicon tuner
 
-    Copyright (C) 2007 Michael Krufky (mkrufky@linuxtv.org)
+    Copyright (C) 2007, 2008 Michael Krufky <mkrufky@linuxtv.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by