busdma - Remove filter functionality

busdma - Remove filter functionality

- Remove filtfunc and filtarg arguments from bus_dma_tag_create() and
  fix all callers. All callers use NULL today for both filterfunc and
  filterarg with one exception: if_jme.

- Remove filter functionality internally and parent tag tracking.
  Without filter functions, we do not need to keep track of tag
  ancestry.  All inheritance of the parent tag's parameters occurs when
  creating the new child tag.

- rename run_filter() to addr_needs_bounce().

- FreeBSD keeps the filtfunc and filtarg arguments but requires them to
  be NULL.

- Drop filterfunc usage from if_jme.

  In case of "JMC260 chip full mask revision 2", which has a hardware bug
  when it comes to DMA transfers crossing the 4 GB bounday, the parent
  buffer tag already limits DMA memory to 32bit address space. As such it
  should be safe to drop the filterfunc. The filterfunc was checking if
  the lower 32bits of the physical address used for DMA are all 0. In case
  of a 32bit address space, the only address where all lower 32-bits are
  all zero is 0 itself and I am here assuming that the physical address 0
  is not used for DMA transfers!

Mainly obtained from: FreeBSD (commits 7cb028de, 900907f4, 1228b93b, 3933ff56)