phy: rockchip-typec: Fix unsigned comparison with less than zero

The dp and ufp are defined as bool type, the return value type of
function extcon_get_state should be int, so the type of dp and ufp
are modified to int.

./drivers/phy/rockchip/phy-rockchip-typec.c:827:12-14: WARNING: Unsigned expression compared with zero: dp > 0.

Reported-by: Abaci Robot <[email protected]>
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=3962
Signed-off-by: Jiapeng Chong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>

Author: Jiapeng Chong

drivers/phy/rockchip/phy-rockchip-typec.c

@@ -808,9 +808,8 @@ static int tcphy_get_mode(struct rockchip_typec_phy *tcphy)
 	struct extcon_dev *edev = tcphy->extcon;
 	union extcon_property_value property;
 	unsigned int id;
-	bool ufp, dp;
 	u8 mode;
-	int ret;
+	int ret, ufp, dp;
 
 	if (!edev)
 		return MODE_DFP_USB;