rhode/devon/hawao - Invert the charging logic

Modify the charging logic in the device tree to interpret positive 
current as charging current and negative current as discharging current.

Change-Id: Id405870b07301326a7121189ce790cc12822f2b1
Reviewed-on: https://gerrit.mot.com/2687408
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: litong <litong20@motorola.com>
Reviewed-by: Guobin Zhang <zhanggb@motorola.com>
Submit-Approved: Jira Key

qcom/discrete_charging.dtsi

@@ -76,6 +76,7 @@
 		reg = <0x64>;
 		status = "okay";
 
+		ibat-invert-polority = <true>;
 		sense_r_mohm = <5>;
 		factory_mode_ntc_exist = <0>;
 		df-serialnum = "SB18D38323";

qcom/discrete_charging_devon.dtsi

@@ -92,6 +92,7 @@
 		reg = <0x64>;
 		status = "okay";
 
+		ibat-invert-polority = "true";
 		sense_r_mohm = <5>;
 		factory_mode_ntc_exist = <0>;
 		df-serialnum = "SB18D20540";

qcom/discrete_charging_hawao.dtsi

@@ -196,6 +196,7 @@
 		reg = <0x64>;
 		status = "okay";
 
+		ibat-invert-polority = "true";
 		sense_r_mohm = <5>;
 		df-serialnum = "SB18D24973";
 		#include "bat_setting/CW_nd50-atl-5000mah.dtsi"