dt-bindings: smb1390-chg-psy: Add property to specify input topology

Add property "qcom,parallel-input-mode" to specify the input connection
topology and rename "qcom,hvdcp3-with-cp" to
"qcom,hvdcp3-standalone-config".

Change-Id: I8bebb6eaea4253ce3397002fe5e97500451585a8