Substitute PSA_ALG_STREAM_CIPHER into all files

Deprecate PSA_ALG_ARC4 and PSA_ALG_CHACHA20.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
diff --git a/include/psa/crypto_sizes.h b/include/psa/crypto_sizes.h
index 4dc8ad4..3df01b2 100644
--- a/include/psa/crypto_sizes.h
+++ b/include/psa/crypto_sizes.h
@@ -735,7 +735,7 @@
          (alg) == PSA_ALG_CBC_NO_PADDING || \
          (alg) == PSA_ALG_CBC_PKCS7) ? PSA_BLOCK_CIPHER_BLOCK_SIZE(key_type) : \
      (key_type) == PSA_KEY_TYPE_CHACHA20 && \
-         (alg) == PSA_ALG_CHACHA20 ? 12 : \
+         (alg) == PSA_ALG_STREAM_CIPHER ? 12 : \
      0)
 
 /** The maximum IV size for all supported cipher algorithms, in bytes.