[PATCH] [RFT] ppc32: add Freescale MPC86xADS boards support

This patch adds the Freescale MPC86xADS board to 2.6.12-rc6.
The supported devices are SMC UART and 10Mbit ethernet on SCC1.

The manual for the board says that it "is compatible with the MPC8xxFADS for
software point of view". That's why this patch extends FADS instead of
introducing a new platform.

As far as I can tell, 2.6.12-rc6 misses support for SCC ethernet on FADS.
This patch should fix that, but we don't have the FADS board to check if it does.
And it would be nice if someone gives this patch a run on FADS to verify FADS is
not broken. Thanks in advance.

FEC is not supported as the "combined FCC/FEC ethernet driver" driver
by Pantelis Antoniou (first posted to this list on May 9; I'll
call it "fs_enet" for short) should replace the current FEC driver.

Signed-off-by: Gennadiy Kurtsman <redacted>
Signed-off-by: Andrei Konovalov <redacted>