Make NSWVC throw on userdebug builds when launch animation times out

This CL WTF-logs when the shade launch animation flag is not set to
false within 5s. This will help debug b/288507023 as it will crash on
droidfood but will keep the safeguard on release builds.

Bug: 288507023
Test: Manual
Change-Id: I91799c3cb04a2c6539853ae7b14e6bfeba19f9ea