phy: phy-twl4030-usb: silence an uninitialized variable warning

The "check" variable isn't necessarily initialized when we print it out
in the debugging messages. It's a pretty haphazard affair and it
doesn't matter very much what we initialize "check" to.

Signed-off-by: Dan Carpenter <[e-mail]>
Signed-off-by: Kishon Vijay Abraham I <[e-mail]>

drivers/phy/ti/phy-twl4030-usb.c

···
 static int twl4030_i2c_write_u8_verify(struct twl4030_usb *twl,
 		u8 module, u8 data, u8 address)
 {
-	u8 check;
+	u8 check = 0xFF;
 
 	if ((twl_i2c_write_u8(module, data, address) >= 0) &&
 	    (twl_i2c_read_u8(module, &check, address) >= 0) &&