OMAP4: clock data: Add missing fields in iva_hsd_byp_clk_mux_ck

Add register address, mask and link to the clksel structure that
were missing in the IVA DPLL mux clock node.

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