power: smblite: Fix ICL vote value for die temp regulation

Currently, there is a vote for icl even when SW_THERMAL
REGULATION voter is not active which leads to icl to stuck
at 200ma. Fix it by voting only when SW_THERMAL_REGULATION_VOTER
is active.

Change-Id: I9b2966e8c5ddf06db6feccc532da032bf4a51637
Signed-off-by: Kavya Nunna <knunna@codeaurora.org>