fix up a few drivers for 64-bit dma addresses

Some drivers make very odd decisions on when to use support for
64-bit addressing.  Fix this up a bit.

Follow-Ups:
- Re: fix up a few drivers for 64-bit dma addresses
  - From: Martin K. Petersen
- [PATCH 5/5] qla2xxx: use lower_32_bits and upper_32_bits instead of reinventing them
  - From: Christoph Hellwig
- [PATCH 4/5] qla1280: properly handle 64-bit DMA
  - From: Christoph Hellwig
- [PATCH 3/5] qla1280: use lower_32_bits and upper_32_bits instead of reinventing them
  - From: Christoph Hellwig
- [PATCH 2/5] ips: properly handle 64-bit DMA
  - From: Christoph Hellwig
- [PATCH 1/5] ips: use lower_32_bits and upper_32_bits instead of reinventing them
  - From: Christoph Hellwig