[PATCH 3/5] omap: Add support for CONFIG_AUTO_ZRELADDR for DEBUG_LL

* Russell King - ARM Linux [off-list ref] [110204 09:14]:

The other point to make is that for every machine in OMAP1, the
serial port is located at 0xffXXXXXX virtual, 0xfeXXXXXX physical.
For OMAP2, that's 0xfaXXXXXX virtual and 0x48XXXXXX physical.

So it's pointless storing both the virtual and physical addresses
as we can compute one from the other with a single instruction.
That gets rid of some of the complexity found in the debugging code.

OK. The zoom boards have external 8250 on the GPMC bus.

Tony