The RFBI_READ/RFBI_STATUS code incorrectly uses chip[0] when it should
be using chip[1].  Andrzej Zaborowski <balrog@zabor.org> confirmed this
bug since I don't know this code well.
Reported-by: NDr David Alan Gilbert <davidagilbert@uk.ibm.com>
Reviewed-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>