board_status: Add longopt equivalents for older options

Long options can be useful when writing examples and documentation
as they are more expressive and obvious to the reader.

Change-Id: I39496765ba1f15ccc2ffe1ad730f0f95702f82b8
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: https://review.coreboot.org/14736
Tested-by: build bot (Jenkins)
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
1 file changed