tegra124: remove spurious error message

Configuring a link bandwidth configuration and then
complaining that it's invalid seems unreasonable.

Change-Id: I6423da6700d4f266222458758c885a4ea47e0df9
Found-by: Coverity Scan
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: http://review.coreboot.org/7502
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)

src/soc/nvidia/tegra124/sor.c

@@ -765,6 +765,7 @@ void tegra_dc_sor_power_down_unused_lanes(struct tegra_dc_sor_data *sor)
 	case SOR_LINK_SPEED_G5_4:
 		drive_current = 0x19191919;
 		pre_emphasis = 0x09090909;
+		break;
 	default:
 		printk(BIOS_ERR, "Invalid sor link bandwidth: %d\n",
 			sor->link_cfg->link_bw);