Update psa_validate_key_policy() for the new policy

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 32568b3..f2245f1 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -1571,6 +1571,7 @@
                              PSA_KEY_USAGE_DECRYPT |
                              PSA_KEY_USAGE_SIGN_HASH |
                              PSA_KEY_USAGE_VERIFY_HASH |
+                             PSA_KEY_USAGE_VERIFY_DERIVATION |
                              PSA_KEY_USAGE_DERIVE ) ) != 0 )
         return( PSA_ERROR_INVALID_ARGUMENT );