ARM: dts: omap3-beagle-xm: fix string error in compatible property

The beagle and beagle-xm entries were inside the same double quote.
Split them to have two distinct entries.

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
ARM: OMAP3630: add generic machine

Add generic machine which can handle inits for omap3630.

Example - clock nodes are not the same between 3430 and 3630.

Signed-off-by: Nishanth Menon <nm@ti.com>