media: Kconfig: mode firewire comment to firewire/Kconfig

This comment should only be visible if the DVB_FIREDTV
config will show.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

[media] firewire: move it one level up

Move firewire to one level up, as the dvb subdirectory will be
removed.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>