ARM: OMAP2+: Remove legacy hwmod entries for omap2

These now come from device tree except for DSS and DMA that
still uses hwmod to initialize. That will get fixed when we
DSS gets device tree bindings and we move completely to the
dmaengine API.

Cc: Paul Walmsley <paul@pwsan.com>
[tony@atomide.com: updated to add trailing commas to structs]
Signed-off-by: Tony Lindgren <tony@atomide.com>