power: smblite-lib: Reduce the ICL immediately when flash is active

Currently, in torch/flash active case the ICL is reduced after
the USB ICL vote for SDP/CDP/DCP charger.This causes a
momentary current surge on USB port.Fix it by reducing
the ICL value before USB ICL vote when torch/flash is active.

Change-Id: I420b52b8b5d236394b3a5ea98eedc6e7797dac92
Signed-off-by: Kavya Nunna <knunna@codeaurora.org>