Replace MBEDTLS_MD_CAN_SHA384 in md.h and ssl.h

Signed-off-by: Elena Uziunaite <elena.uziunaite@arm.com>
diff --git a/tf-psa-crypto/drivers/builtin/include/mbedtls/md.h b/tf-psa-crypto/drivers/builtin/include/mbedtls/md.h
index 478e9f7..32416fb 100644
--- a/tf-psa-crypto/drivers/builtin/include/mbedtls/md.h
+++ b/tf-psa-crypto/drivers/builtin/include/mbedtls/md.h
@@ -69,7 +69,7 @@
  */
 #if defined(MBEDTLS_MD_CAN_SHA512) || defined(MBEDTLS_MD_CAN_SHA3_512)
 #define MBEDTLS_MD_MAX_SIZE         64  /* longest known is SHA512 */
-#elif defined(MBEDTLS_MD_CAN_SHA384) || defined(MBEDTLS_MD_CAN_SHA3_384)
+#elif defined(PSA_WANT_ALG_SHA_384) || defined(MBEDTLS_MD_CAN_SHA3_384)
 #define MBEDTLS_MD_MAX_SIZE         48  /* longest known is SHA384 */
 #elif defined(MBEDTLS_MD_CAN_SHA256) || defined(MBEDTLS_MD_CAN_SHA3_256)
 #define MBEDTLS_MD_MAX_SIZE         32  /* longest known is SHA256 */
@@ -84,7 +84,7 @@
 #define MBEDTLS_MD_MAX_BLOCK_SIZE         144 /* the longest known is SHA3-224 */
 #elif defined(MBEDTLS_MD_CAN_SHA3_256)
 #define MBEDTLS_MD_MAX_BLOCK_SIZE         136
-#elif defined(MBEDTLS_MD_CAN_SHA512) || defined(MBEDTLS_MD_CAN_SHA384)
+#elif defined(MBEDTLS_MD_CAN_SHA512) || defined(PSA_WANT_ALG_SHA_384)
 #define MBEDTLS_MD_MAX_BLOCK_SIZE         128
 #elif defined(MBEDTLS_MD_CAN_SHA3_384)
 #define MBEDTLS_MD_MAX_BLOCK_SIZE         104