Fix scene animation not applied to task target

Previously, we only apply override AnimationOptions to Task target
if it's specified to override task transition in AnimationOptions.

Now, from the logic in DefaultTranitionHandler#loadAnimation,
we should update the logic to apply Animationptions except for
type ANIM_CUSTOM without task transition override.

Test: atest TransitionTests
Fixes: 353490590
Flag: EXEMPT bugfix

Change-Id: I2601572256f6586c49cf293508a7ac5d1f5eabc2