The gpmc ranges property for NAND at CS0 was being overridden by later
includes that defined gpmc ethernet nodes, effectively breaking NAND on
these systems:

	omap-gpmc 6e000000.gpmc: /ocp/gpmc@6e000000/nand@0,0 has
	malformed 'reg' property

Instead of redefining the NAND range in every such dtsi, define all
currently used ranges in omap3-overo-base.dtsi.

Fixes: 98ce6007 ("ARM: dts: overo: Support PoP NAND")
Cc: stable <stable@vger.kernel.org> # 4.3
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>