Fix pkparse bug wrt MBEDTLS_RSA_ALT
Some code paths want to access members of the mbedtls_rsa_context structure.
We can only do that when using our own implementation, as otherwise we don't
know anything about that structure.
diff --git a/library/pkparse.c b/library/pkparse.c
index da9edc9..1cbb8cc 100644
--- a/library/pkparse.c
+++ b/library/pkparse.c
@@ -785,7 +785,7 @@
NULL, NULL ) ) != 0 )
goto cleanup;
-#if !defined(MBEDTLS_RSA_NO_CRT)
+#if !defined(MBEDTLS_RSA_NO_CRT) && !defined(MBEDTLS_RSA_ALT)
/*
* The RSA CRT parameters DP, DQ and QP are nominally redundant, in
* that they can be easily recomputed from D, P and Q. However by
