* Use a common set of exception handlers for all arm32 platforms.
* New FIQ framework based on discussions with Ben Harris, shared
between arm26 and arm32.
to zero page, and it branches to either the rx or tx handler. My intention
is that the tx handler should switch to the rx one the moment it finishes,
without needing a downgrade, which I hope will get rid of the start-of-frame
rx overruns I'm seeing.
While I'm here, move the constants describing the shape of the FIQ state
structures out of if_ecavar.h and into genassym.cf where they belong.
