[media] drxd/drxk: Don't export MulDiv32 symbol

/home/v4l/v4l/patchwork/drivers/media/dvb/frontends/drxk_hard.c:181: multiple definition of `MulDiv32'
drivers/media/dvb/frontends/drxd.o:/home/v4l/v4l/patchwork/drivers/media/dvb/frontends/drxd_hard.c:236: first defined here
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/frontends/drxd_hard.c

@@ -232,7 +232,7 @@ static int i2c_read(struct i2c_adapter *adap,
 	return 0;
 }
 
-inline u32 MulDiv32(u32 a, u32 b, u32 c)
+static inline u32 MulDiv32(u32 a, u32 b, u32 c)
 {
 	u64 tmp64;
 

drivers/media/dvb/frontends/drxk_hard.c

@@ -177,7 +177,7 @@ bool IsA1WithRomCode(struct drxk_state *state)
 #define DRXK_QAM_SL_SIG_POWER_QAM128      (20992)
 #define DRXK_QAM_SL_SIG_POWER_QAM256      (43520)
 
-inline u32 MulDiv32(u32 a, u32 b, u32 c)
+static inline u32 MulDiv32(u32 a, u32 b, u32 c)
 {
 	u64 tmp64;