[media] DiBcom: correct warnings

The intend of this patch is to correct some warnings given.
Signed-off-by: NOlivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: NPatrick Boettcher <patrick.boettcher@dibcom.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/dvb-usb/dib0700_devices.c

@@ -1328,7 +1328,7 @@ static int stk807xpvr_frontend_attach1(struct dvb_usb_adapter *adap)
 }
 
 /* STK8096GP */
-struct dibx000_agc_config dib8090_agc_config[2] = {
+static struct dibx000_agc_config dib8090_agc_config[2] = {
 	{
 	BAND_UHF | BAND_VHF | BAND_LBAND | BAND_SBAND,
 	/* P_agc_use_sd_mod1=0, P_agc_use_sd_mod2=0, P_agc_freq_pwm_div=1,
@@ -2152,7 +2152,7 @@ static struct dib0090_wbd_slope dib7090e_wbd_table[] = {
 	{ 0xFFFF, 0,   0, 0,   0,	0},
 };
 
-struct dibx000_agc_config dib7090_agc_config[2] = {
+static struct dibx000_agc_config dib7090_agc_config[2] = {
 	{
 		.band_caps      = BAND_UHF,
 		/* P_agc_use_sd_mod1=0, P_agc_use_sd_mod2=0, P_agc_freq_pwm_div=1, P_agc_inv_pwm1=0, P_agc_inv_pwm2=0,

drivers/media/dvb/frontends/dib0090.c

@@ -1522,7 +1522,7 @@ static void dib0090_set_default_config(struct dib0090_state *state, const u16 *
 #define POLY_MIN      (u8)  0
 #define POLY_MAX      (u8)  8
 
-void dib0090_set_EFUSE(struct dib0090_state *state)
+static void dib0090_set_EFUSE(struct dib0090_state *state)
 {
 	u8 c, h, n;
 	u16 e2, e4;

drivers/media/dvb/frontends/dib7000p.c

@@ -1876,7 +1876,8 @@ static int w7090p_tuner_rw_serpar(struct i2c_adapter *i2c_adap, struct i2c_msg m
 	return num;
 }
 
-int dib7090p_rw_on_apb(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num, u16 apb_address)
+static int dib7090p_rw_on_apb(struct i2c_adapter *i2c_adap,
+		struct i2c_msg msg[], int num, u16 apb_address)
 {
 	struct dib7000p_state *state = i2c_get_adapdata(i2c_adap);
 	u16 word;