crypto: zstd - convert to acomp

Convert the implementation to a native acomp interface using zstd
streaming APIs, eliminating the need for buffer linearization.

This includes:
   - Removal of the scomp interface in favor of acomp
   - Refactoring of stream allocation, initialization, and handling for
     both compression and decompression using Zstandard streaming APIs
   - Replacement of crypto_register_scomp() with crypto_register_acomp()
     for module registration

Signed-off-by: Suman Kumar Chakraborty <suman.kumar.chakraborty@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>