Fix some errors relating to header file renames

Fix some errors due to renaming of header files in the 3.0 branch.

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/library/psa_crypto_hash.h b/library/psa_crypto_hash.h
index af47c8b..b2dfdc5 100644
--- a/library/psa_crypto_hash.h
+++ b/library/psa_crypto_hash.h
@@ -24,7 +24,7 @@
 #include <psa/crypto.h>
 #include <psa/crypto_builtin_hash.h>
 
-#include <mbedtls/md_internal.h>
+#include "md_wrap.h"
 
 /** Get Mbed TLS MD information of a hash algorithm given its PSA identifier
  *