vme: tsi148: fix DMA lists longer that one item
vme: tsi148: fix DMA lists longer that one item

DMA lists on tsi148 weren't processed further than the first item
because of the broken logic. This regression was introduced in:

ac1a4f2caf7b071 "Staging: VME: Ensure TSI148 link list descriptors..."

Signed-off-by: Dmitry Kalinkin <29815bb9c607b7ec4d5674c4d27228258621d840@gmail.com>
Cc: Igor Alekseev <f6afc2a8bd1cc7c55abe68b48633cbbd93d243b8@itep.ru>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs