Fix cmpctmalloc crash for large aligned allocations.

[floitsch]

The aligned alloc path didn't check size before entering the bucket allocator. On ESP32-P4, cache alignment requirements (64 bytes) put large allocations (e.g. 32KB DMA pool) into the bucket path instead of page_alloc, causing a fatal in size_to_index_helper.

[erikcorry]

Just add " || size >= PAGE_SIZE / 4 * 3" here

The obvious choice of using SMALL_ALLOCATION_LIMIT has some issues because aligned allocations get rounded up a bit later and could hit the limit. This is a safe choice, but you could also copy the limit from the regular unaligned path, which is designed to avoid fragmentation.

if (size < ALMOST_FULL_PAGE ||
    (PAGE_SIZE < size && size <= PAGE_AND_A_HALF)) {

[floitsch]

done.