drm/radeon: fix typo in ni_print_power_state

	for (i = 0; i < ps->performance_level_count; i++) {

		pl = &ps->performance_levels[i];

		if (rdev->family >= CHIP_TAHITI)

			printk("\t\tpower level 0    sclk: %u mclk: %u vddc: %u vddci: %u pcie gen: %u\n",

			       pl->sclk, pl->mclk, pl->vddc, pl->vddci, pl->pcie_gen + 1);

			printk("\t\tpower level %d    sclk: %u mclk: %u vddc: %u vddci: %u pcie gen: %u\n",

			       i, pl->sclk, pl->mclk, pl->vddc, pl->vddci, pl->pcie_gen + 1);

		else

			printk("\t\tpower level 0    sclk: %u mclk: %u vddc: %u vddci: %u\n",

			       pl->sclk, pl->mclk, pl->vddc, pl->vddci);

			printk("\t\tpower level %d    sclk: %u mclk: %u vddc: %u vddci: %u\n",

			       i, pl->sclk, pl->mclk, pl->vddc, pl->vddci);

	}

	r600_dpm_print_ps_status(rdev, rps);

}