[MTD] NOR flash map driver for TI OMAP boards.

From: David Brownell, Jian Zhang <jzhang@ti.com>, Tony Lindgren
<tony@atomide.com> and others.

Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>