OMAP4: hwmod data: Add IVA and DSP

Add IVA and DSP hwmods in order to allow the pm code to
initialize properly the processors devices during
omap2_init_processor_devices.

It will avoid the following warnings.
_init_omap_device: could not find omap_hwmod for iva
_init_omap_device: could not find omap_hwmod for dsp

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>