[PATCH 0/2]: Rewrite central driver

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The sparc64 central driver for SUNW,Ultra-Enterprise starfire
servers was doing several things, some of which are now
unnecessary:

1) IRQ register initialization, which is now handled entirely
   in the IRQ controller mini-driver in
   arch/sparc64/kernel/of_device.c

2) Basic programming of per-board registers, such as setting
   the "I exist" bit in non-central FHC controllers, clearing
   the firmware semaphore, and clearing the power state bits.

3) LED blink

#1 can be deleted, and #2 and #3 can be simplified and cleaned
up massively.

What happens now is that there is a new LED layer driver for
the sunfire LEDs.  Then a top-level FHC/clock-board driver
programs the chips and creates the platform_device objects
which will get used by the LED driver.
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