Move all os / arch specifics to eal. Signed-off-by: David Marchand <david.marchand@6wind.com> Reviewed-by: Santosh Shukla <sshukla@mvista.com> Tested-by: Santosh Shukla <sshukla@mvista.com> Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>