Speed up Home ripple if Launcher has requested override.

Also add a Runnable which runs when the ripple is next invisible.
In this case, startAssist runs at that time for the override case.

Demo: https://drive.google.com/file/d/1kaw0yfNt-T9mi8tLZhpsVkKnpXIeJotM/view?usp=drive_link&resourcekey=0-LLuCOx-TXH91C5bfB_8J9A
Fix: 306131168
Test: Manual with regular home press + long press, with and without
override requested.
Flag: LEGACY INVOKE_LPH DISABLED

Change-Id: I59c45fd180636476c4c6942c23215e0ee7fa5e18