library: replace deprecated symbols with temporary _LEGACY ones

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/library/pk_wrap.h b/library/pk_wrap.h
index 91d240c..b4b974f 100644
--- a/library/pk_wrap.h
+++ b/library/pk_wrap.h
@@ -150,9 +150,9 @@
 int MBEDTLS_DEPRECATED mbedtls_pk_error_from_psa(psa_status_t status);
 
 #if defined(PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY) ||    \
-    defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR)
+    defined(MBEDTLS_PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_LEGACY)
 int MBEDTLS_DEPRECATED mbedtls_pk_error_from_psa_rsa(psa_status_t status);
-#endif /* PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY || PSA_WANT_KEY_TYPE_RSA_KEY_PAIR */
+#endif /* PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY || MBEDTLS_PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_LEGACY */
 #endif /* !MBEDTLS_DEPRECATED_REMOVED */
 
 #if defined(MBEDTLS_RSA_C)