RESTRICT AUTOMERGE: Backport Cut max duration for default transition to 1500

3 seconds is way too long, especially for tap jacking exploitation during animation. Cut it down to 1500 for a more tolerable experience.

Bug: 266433089
Test: manual
Flag: EXEMPT BUGFIX
Cherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:1d37fc960d93d216e151d74662ccc5d53fd68978
Merged-In: I597e43434a6372299ee33618704042e2c583a2c3
Change-Id: I597e43434a6372299ee33618704042e2c583a2c3