ACPI: SPCR: Add support for NVIDIA 16550-compatible port subtype

Add support for the NVIDIA specific 16550 subtype to SPCR table parsing
routine.

Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/spcr.c

@@ -142,6 +142,7 @@ int __init acpi_parse_spcr(bool enable_earlycon, bool enable_console)
 	case ACPI_DBG2_16550_COMPATIBLE:
 	case ACPI_DBG2_16550_SUBSET:
 	case ACPI_DBG2_16550_WITH_GAS:
+	case ACPI_DBG2_16550_NVIDIA:
 		uart = "uart";
 		break;
 	default: