Convert the board-rx51 smc91x code to be generic and make
the boards to use it. This allows future recalculation of the
timings when the source clock gets scaled.

Also correct the rx51 interrupt to be IORESOURCE_IRQ_HIGHLEVEL.

Thanks to Paul Walmsley <paul@pwsan.com> for better GPMC timing
calculations.
Signed-off-by: NTony Lindgren <tony@atomide.com>

Signed-off-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Add support for 3430 SDP.

Various updates have been merged into this patch from
the linux-omap list.

Patch updated to initialize regulators by David Brownell
<dbrownell@users.sourceforge.net>.
Signed-off-by: NSyed Mohammed Khasim <khasim@ti.com>
David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NTony Lindgren <tony@atomide.com>