[libata sata_promise] add correct read/write of hotplug registers for SATAII devices
[libata sata_promise] add correct read/write of hotplug registers for SATAII devices

This patch adds support for correctly masking out and knowing about
hotplug events on Promise SATAII150 Tx4/Tx2 Plus controllers.

Also, a kmalloc->kzalloc cleanup.

Signed-off-by: Luke Kosewski <b9cce4f12f9411d883f36f9e72b995e671464d32@gmail.com>
Signed-off-by: Jeff Garzik <15f615bf7d20c2937c7eb5aa759110fd6768848c@pobox.com>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs