Potential fixes for the icon issue.

1. The udfps icon padding comes out to be a negative value when the params are not yet initialized.
2. Debounce the padding flow to limit it to 1 update per 100ms

Bug: 359154646
Test: unit test in a child CL
Flag: EXEMPT bugfix
Change-Id: Ib3d95740761a6e89c2918b1519a7d1cba857a25a