ACPI: tables: Add CEDT signature to the list of known tables

Add ACPI_SIG_CEDT to table_sigs[] in  "drivers/acpi/tables.c".

Signed-off-by: Robert Kiraly <me@boldcoder.com>
[ rjw: Rebase, new subject and changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/tables.c

@@ -545,7 +545,7 @@ static const char table_sigs[][ACPI_NAMESEG_SIZE] __initconst = {
 	ACPI_SIG_WDDT, ACPI_SIG_WDRT, ACPI_SIG_DSDT, ACPI_SIG_FADT,
 	ACPI_SIG_PSDT, ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT,
 	ACPI_SIG_IORT, ACPI_SIG_NFIT, ACPI_SIG_HMAT, ACPI_SIG_PPTT,
-	ACPI_SIG_NHLT, ACPI_SIG_AEST };
+	ACPI_SIG_NHLT, ACPI_SIG_AEST, ACPI_SIG_CEDT };
 
 #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header)