regulator: tps65217-regulator: Remove pointless 'is unsigned int <0' check

'rid' is declared as unsigned int, so there is little point checking for <0.

Removing these checks fixes the following W=1 warnings:

 drivers/regulator/tps65217-regulator.c: In function ‘tps65217_pmic_set_suspend_enable’:
 drivers/regulator/tps65217-regulator.c:127:10: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
 127 | if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
 | ^
 drivers/regulator/tps65217-regulator.c: In function ‘tps65217_pmic_set_suspend_disable’:
 drivers/regulator/tps65217-regulator.c:140:10: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
 140 | if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
 | ^
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Russ Dill <Russ.Dill@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: AnilKumar Ch <anilkumar@ti.com>
Cc: linux-omap@vger.kernel.org
Link: https://lore.kernel.org/r/20200626065738.93412-6-lee.jones@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/tps65217-regulator.c

@@ -124,7 +124,7 @@ static int tps65217_pmic_set_suspend_enable(struct regulator_dev *dev)
 	struct tps65217 *tps = rdev_get_drvdata(dev);
 	unsigned int rid = rdev_get_id(dev);
 
-	if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
+	if (rid > TPS65217_LDO_4)
 		return -EINVAL;
 
 	return tps65217_clear_bits(tps, dev->desc->bypass_reg,
@@ -137,7 +137,7 @@ static int tps65217_pmic_set_suspend_disable(struct regulator_dev *dev)
 	struct tps65217 *tps = rdev_get_drvdata(dev);
 	unsigned int rid = rdev_get_id(dev);
 
-	if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
+	if (rid > TPS65217_LDO_4)
 		return -EINVAL;
 
 	if (!tps->strobes[rid])