OMAP4: clock data: Add SCRM auxiliary clock nodes

Add support for auxiliary clocks nodes which are part of SCRM.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>