ata: Fix DVD not dectected at some platform with Wellsburg PCH

ata: Fix DVD not dectected at some platform with Wellsburg PCH

There is a patch 8e43bc0178b35ea456bc83663b5c9d2669549f86 "ata_piix: Fix DVD
 not dectected at some Haswell platforms" to fix an issue of DVD not
recognized on Haswell Desktop platform with Lynx Point.
Recently, it is also found the same issue at some platformas with Wellsburg PCH.

So deliver a similar patch to fix it by disables 32bit PIO in IDE mode.

Signed-off-by: Youquan Song <youquan.song@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org