power: smb5-lib: Fix USBIN Under-Voltage Lock-out issue

Sometimes, the USB input under-voltage is easy to get triggered when
there is a large cable IR drop, like when QC2/3 supplies 3A ICL at 5V
when battery voltage is high.

Reduce the AICL collapse deglitch filter time and step time so that
the ICL can be lowered before the ASHDN is deglitched into UVLO and
turns off the switcher.

Change-Id: I72fd1a6549d6ea89b5c9f7ac05bc424d2bf142eb
Signed-off-by: Harry Yang <harryy@codeaurora.org>
Signed-off-by: Ashish Chavan <ashichav@codeaurora.org>