ARM: OMAP4: hwmod data: add the OCP-WP IP block

Add the OCP-WP hwmod and associated interconnect data.  The OCP-WP,
or OCP watchpoint, can be used to collect interconnect data and
transmit it via the STM port.

Signed-off-by: Benoît Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>