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>

drivers/media/Kconfig

@@ -192,8 +192,6 @@ source "drivers/media/test_drivers/Kconfig"
 source "drivers/media/mmc/Kconfig"
 endif
 
-comment "Supported FireWire (IEEE 1394) Adapters"
-	depends on DVB_CORE && FIREWIRE
 source "drivers/media/firewire/Kconfig"
 
 # Common driver options

drivers/media/firewire/Kconfig

 # SPDX-License-Identifier: GPL-2.0-only
+if DVB_CORE && FIREWIRE
+comment "FireWire (IEEE 1394) Adapters"
+
 config DVB_FIREDTV
 	tristate "FireDTV and FloppyDTV"
-	depends on DVB_CORE && FIREWIRE
 	help
 	  Support for DVB receivers from Digital Everywhere
 	  which are connected via IEEE 1394 (FireWire).
@@ -18,3 +20,4 @@ config DVB_FIREDTV_INPUT
 	def_bool INPUT = y || (INPUT = m && DVB_FIREDTV = m)
 
 endif # DVB_FIREDTV
+endif # DVB_CORE && FIREWIRE