[MC-126633] Falling block over Kelp or Sea grass drop as item

If a block falls over Kelp or Sea Grass, it drops as an item, instead of crushing the plant.

Reproduce:

Have bloc of sand or gravel falls over Kelp or Sea grass.

Linked issues

Falling block with fall down the whole kelp blocks normally but break as an item once reaching ground.

Confirmed. It crushes tall grass, but not kelp.

Fixed for sea grass, but for kelp is WAI.