quark_x10xx: fix IO r/w operations with paging enabled

quark_x10xx: fix IO r/w operations with paging enabled

Paging checking and disabling wasn't present for IO r/w,
so the commands were successful only when paging wasn't
enabled (e.g. EFI boot phase).

Change-Id: I41366c0fadff3ea1eb8a153291f20a46cd9ddec1
Signed-off-by: Ivan De Cesaris <ivan.de.cesaris@intel.com>
Reviewed-on: http://openocd.zylin.com/2118
Tested-by: jenkins
Reviewed-by: Peter Stuge <peter@stuge.se>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>