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_rsa.c b/library/psa_crypto_rsa.c
index 1ab1e94..686f07d 100644
--- a/library/psa_crypto_rsa.c
+++ b/library/psa_crypto_rsa.c
@@ -39,7 +39,7 @@
 #include <mbedtls/rsa.h>
 #include <mbedtls/error.h>
 #include <mbedtls/pk.h>
-#include <mbedtls/pk_internal.h>
+#include "pk_wrap.h"
 
 #if ( defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) ||  \
       ( defined(PSA_CRYPTO_DRIVER_TEST) &&                   \