twl4030: make twl4030_i2c_write_u8 prototype consistent

u-boot standard i2c register write prototype is
i2c_reg_write(u8 addr, u8 reg, u8 val)

twl4030_i2c_write_u8(u8 addr, u8 val, u8 reg)
does not provide consistency, so switch the prototype to be
consistent with rest of u-boot i2c operations:
twl4030_i2c_write_u8(u8 addr, u8 reg, u8 val)

Signed-off-by: Nishanth Menon <nm@ti.com>
diff --git a/drivers/power/twl4030.c b/drivers/power/twl4030.c
index e7d5f13..2bf94b1 100644
--- a/drivers/power/twl4030.c
+++ b/drivers/power/twl4030.c
@@ -51,8 +51,8 @@
 		printf("Could not initialize hardware reset\n");
 	} else {
 		val |= TWL4030_PM_MASTER_SW_EVENTS_STOPON_PWRON;
-		if (twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, val,
-					 TWL4030_PM_MASTER_P1_SW_EVENTS)) {
+		if (twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER,
+					 TWL4030_PM_MASTER_P1_SW_EVENTS, val)) {
 			printf("Error:TWL4030: failed to write the power register\n");
 			printf("Could not initialize hardware reset\n");
 		}
@@ -68,8 +68,8 @@
 	int ret;
 
 	/* Select the Voltage */
-	ret = twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, vsel_val,
-				vsel_reg);
+	ret = twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, vsel_reg,
+				   vsel_val);
 	if (ret != 0) {
 		printf("Could not write vsel to reg %02x (%d)\n",
 			vsel_reg, ret);
@@ -77,8 +77,8 @@
 	}
 
 	/* Select the Device Group (enable the supply if dev_grp_sel != 0) */
-	ret = twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, dev_grp_sel,
-				dev_grp);
+	ret = twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, dev_grp,
+				   dev_grp_sel);
 	if (ret != 0)
 		printf("Could not write grp_sel to reg %02x (%d)\n",
 			dev_grp, ret);