power: qpnp-smbcharger: fix suspend current misconfiguration

Commit 387cacdfdcfe0a ("power: qpnp-smbcharger: always set high
current when setting ICL")
tried fixing a problem where the APSD results couldn't be
overridden when setting lower currents like 500/900 mA.

However, it broke a special case handling the suspend current
configuration. Fix it.

CRs-Fixed: 844200
Change-Id: I02ff84d1e17ca6d714aed99c41c0399afefb71cc
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>