[media] dvb-frontends: use IS_ENABLED

Instead of checking everywhere there for 3 symbols, use instead
IS_ENABLED macro.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb-frontends/dib3000mc.h b/drivers/media/dvb-frontends/dib3000mc.h
index d75ffad..129d142 100644
--- a/drivers/media/dvb-frontends/dib3000mc.h
+++ b/drivers/media/dvb-frontends/dib3000mc.h
@@ -13,6 +13,8 @@
 #ifndef DIB3000MC_H
 #define DIB3000MC_H
 
+#include <linux/kconfig.h>
+
 #include "dibx000_common.h"
 
 struct dib3000mc_config {
@@ -39,8 +41,7 @@
 #define DEFAULT_DIB3000MC_I2C_ADDRESS 16
 #define DEFAULT_DIB3000P_I2C_ADDRESS  24
 
-#if defined(CONFIG_DVB_DIB3000MC) || (defined(CONFIG_DVB_DIB3000MC_MODULE) && \
-				      defined(MODULE))
+#if IS_ENABLED(CONFIG_DVB_DIB3000MC)
 extern struct dvb_frontend *dib3000mc_attach(struct i2c_adapter *i2c_adap,
 					     u8 i2c_addr,
 					     struct dib3000mc_config *cfg);