powerhint.json: Update uclamp_min hint to account for margin am: c0f618e356 am: 7648f98770

Original change: https://googleplex-android-review.googlesource.com/c/device/google/lynx/+/22508407

Change-Id: I0560a12b39b61a404dd9ce545f55aec2ffaad4da
Signed-off-by: Automerger Merge Worker <[email protected]>