We cannot use os_{malloc,free,realloc}_aligned because
os_realloc_aligned needs the old size (for memcpy).
v2: no max_align_t on MSVC
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11117>
