libata: Add Seagate STT20000A to DMA blacklist.
libata: Add Seagate STT20000A to DMA blacklist.

http://bugzilla.kernel.org/show_bug.cgi?id=1044 points out an
additional hard disk that doesn't handle DMA transfers correctly.
This patch is the libata variant of the earlier patch to drivers/ide/

Signed-off-by: Dave Jones <d5ec0d24602845f6f4b6a35ef729998d1fba5507@redhat.com>
Signed-off-by: Jeff Garzik <f3e731dfa293c7a83119d8aacfa41b5d2d780be9@garzik.org>

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