[LinuxBIOS] [PATCH] add support the IEI PCISA-LX

[Nikolay Petukhov]

This board (http://www.ieiworld.com/en/product_IPC.asp?model=PCISA-LX)
is based on amd-lx800/cs5536, so most of the on-board hardware is work
normally.

Signed-off-by: Nikolay Petukhov