ChromeOS: Add missing prototype for  acpi_get_vdat_info()

Change-Id: I4bd9b52cfc24a8ff73be05ee535b9e16c0d9bd79
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/946
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
1 file changed