crypto: ccree - fix pm wrongful error reporting

pm_runtime_get_sync() can return 1 as a valid (none error) return
code. Treat it as such.
Signed-off-by: NGilad Ben-Yossef <gilad@benyossef.com>
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/ccree/cc_pm.c

@@ -85,7 +85,7 @@ int cc_pm_get(struct device *dev)
 	else
 		pm_runtime_get_noresume(dev);
 
-	return rc;
+	return (rc == 1 ? 0 : rc);
 }
 
 int cc_pm_put_suspend(struct device *dev)