Include psa/crypto.h in legacy_or_psa.h

It is needed for PSA_WANT_ALG_xxxx symbols

*** Comparing before-default -> after-default ***
   x509parse: total 723; skipped  26 ->  26
   x509write: total  41; skipped   8 ->   8
         pem: total  13; skipped   0 ->   0
         oid: total  28; skipped   0 ->   0

*** Comparing before-full -> after-full ***
   x509parse: total 723; skipped  25 ->  25
   x509write: total  41; skipped   0 ->   0
         pem: total  13; skipped   0 ->   0
         oid: total  28; skipped   0 ->   0

*** Comparing reference -> drivers ***
   x509parse: total 723; skipped  89 ->  89
   x509write: total  41; skipped   3 ->   3
         pem: total  13; skipped   0 ->   0
         oid: total  28; skipped   0 ->   0

Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
diff --git a/library/legacy_or_psa.h b/library/legacy_or_psa.h
index 84fc206..be0f33f 100644
--- a/library/legacy_or_psa.h
+++ b/library/legacy_or_psa.h
@@ -90,6 +90,9 @@
 #define MBEDTLS_OR_PSA_HELPERS_H
 
 #include "common.h"
+#if defined(MBEDTLS_PSA_CRYPTO_C)
+#include "psa/crypto.h"
+#endif /* MBEDTLS_PSA_CRYPTO_C */
 
 /*
  * Hashes