V4L/DVB (11829): Rewrote frontend-attach mechanism to gain noise-less deactivation of submodules

This patch is reorganizing the frontend-attach mechanism in order to
gain noise-less (superflous prints) deactivation of submodules.

Credits go to Uwe Bugla for helping to clean and test the code.
Signed-off-by: Uwe Bugla <uwe.bugla@gmx.de>
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/b2c2/flexcop-common.h

 /*
- * This file is part of linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III
- *
- * flexcop-common.h - common header file for device-specific source files also.
- *
- * see flexcop.c for copyright information.
+ * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
+ * flexcop-common.h - common header file for device-specific source files
+ * see flexcop.c for copyright information
  */
 #ifndef __FLEXCOP_COMMON_H__
 #define __FLEXCOP_COMMON_H__