[media] move the dvb/frontends to drivers/media/dvb-frontends

Raise the DVB frontends one level up, as the intention is to remove
the drivers/media/dvb directory.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/cx18/Makefile b/drivers/media/video/cx18/Makefile
index e0701e9..db5ab12 100644
--- a/drivers/media/video/cx18/Makefile
+++ b/drivers/media/video/cx18/Makefile
@@ -9,5 +9,5 @@
 obj-$(CONFIG_VIDEO_CX18_ALSA) += cx18-alsa.o
 
 ccflags-y += -Idrivers/media/dvb-core
-ccflags-y += -Idrivers/media/dvb/frontends
+ccflags-y += -Idrivers/media/dvb-frontends
 ccflags-y += -Idrivers/media/common/tuners