Fall back to using board_vendor and board_name, if known dummy values
are used for sys_vendor and product_name.
Examples:
To be filled by O.E.M.:To be filled by O.E.M.
--> INTEL Corporation:ChiefRiver
System manufacturer:System Product Name
--> ASUSTeK COMPUTER INC.:P8H77-M PRO
To Be Filled By O.E.M.:To Be Filled By O.E.M.
--> ASRock:Q1900DC-ITX
Gigabyte Technology Co., Ltd.:To be filled by O.E.M.
--> Gigabyte Technology Co., Ltd.:H77M-D3H
empty:empty
--> TYAN Computer Corporation:TYAN Toledo i3210W/i3200R S5211
To Be Filled By O.E.M.:To Be Filled By O.E.M.
--> ASRock:H77 Pro4-M
Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
