The ramp steps and timing of LED breath display modified

Root cause:
N/A

How to fix:
Ramp steps and timing modified

Feature:
Issue:
Depends-On:

RiskArea:
LED

Change-Id: Ie4eda07475a3ab543d77563b4ac5f4bc0bd94e58
(cherry picked from commit 82edac0eb7620bf66b6778be6e64e889f1f77c04)