UPSTREAM: soc/tegra: bpmp: Actually free memory on error path

Within the error path, genpd->domains has not been set, so we need
to pass the domains variable to kfree instead.

Bug 3979990

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: Idc30457b566db1ada119574a775512ca992b6db2
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2871550
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Timo Alho <talho@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>

drivers/soc/tegra/powergate-bpmp.c

@@ -286,7 +286,7 @@ remove:
 		tegra_powergate_remove(powergate);
 	}
 
-	kfree(genpd->domains);
+	kfree(domains);
 	return err;
 }