V4L/DVB (3929): Compilation for DVB_AV7110_FIRMWARE seems to be weird

Some systems use a previous config information to generate
a default config. This seems to cause troubles on some 
systems.

This patch also fixes compilation for AV7110 firmware
inside V4L/DVB tree.
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/dvb/ttpci/Makefile

@@ -15,7 +15,7 @@ EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/
 
 hostprogs-y	:= fdump
 
-ifdef CONFIG_DVB_AV7110_FIRMWARE
+ifeq (CONFIG_DVB_AV7110_FIRMWARE,y)
 $(obj)/av7110.o: $(obj)/fdump $(obj)/av7110_firm.h
 
 $(obj)/av7110_firm.h: