Adjust libata to ignore errors after spinup

This patch is to ignore errors from the spinup attempt if the drive is
in the "standby id" state.
Signed-off-by: NRyan Power <rpower@sysreset.com>
Acked-by: NMark Lord <liml@rtr.ca>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJeff Garzik <jeff@garzik.org>