tree into the new arm substree. All moved files are relinked with a stub that included
the file from the new location; this might be done better later.
shape as the old arm32 one, but there are a few #defines to keep arm26 code
happy. Anything that depends on the precise shape of the trapframe,
and especially on being able to treat it as an array of registers, has been
updated.
- Most changes are comment cleanups.
_ iomd.h is no longer an exported header.
- Added intr.h for MI interrupt definitions.
- Added definitions for ARM8 cpu.
- Added bus dma support.
reinoud