dt-bindings: qpnp-qg: Add support for weighted capacity learning

Add support to loosen capacity learning qualifying criterion.
This helps to learn capacity from any starting battery SOC to
any ending battery SOC, provided, battery SOC changes by at least
10 % during charging. Assign weight to this capacity learning
event based on the change in battery SOC.

Change-Id: I3cdf7d6fe8d53f5b96aab4fad6b7bc293cf523c7

bindings/power/supply/qcom/qpnp-qg.txt

@@ -262,6 +262,21 @@ First Level Node - QGAUGE device
 		    capacity learning cycle. If this is not specified, then
 		    the default value is 0. Unit is in decipercentage.
 
+- qcom,cl-min-delta-batt-soc
+	Usage:      optional
+	Value type: <u32>
+	Definition: Minimum change in battery SOC to qualify for capacity
+		    learning. If this is not specified, then the default
+		    value is 10. Unit is in percentage.
+
+- qcom,cl-wt-enable
+	Usage:      optional
+	Value type: <bool>
+	Definition: A boolean property to enable weighted capacity learning
+		    based on change in battery SOC during a charging cycle.
+		    If this is specified, then "qcom,cl-min-start-soc" and
+		    "qcom,cl-max-start-soc" is not used.
+
 - qcom,esr-disable
 	Usage:      optional
 	Value type: <bool>