bd82x6x, ibexpeak, lynxpoint: Declare NVSA before its use.

Windows chokes if it's not the case.

Change-Id: I3df15228ed00c3124b8d42fc01d7d63ff3fe07ba
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7017
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>

src/include/device/device.h

@@ -61,6 +61,7 @@ struct device_operations {
 	unsigned long (*write_acpi_tables)(unsigned long start,  struct acpi_rsdp *rsdp);
 	unsigned long (*acpi_fill_ssdt_generator)(unsigned long current,
 						  const char *oem_table_id);
+	void (*acpi_inject_dsdt_generator)(void);
 #endif
 	const struct pci_operations *ops_pci;
 	const struct smbus_bus_operations *ops_smbus_bus;