OMAP4: clocks: Update the clock tree with 4460 clock nodes

Add the new clock nodes (bandgap_ts_fclk, div_ts_ck) for omap4460.
Handle these nodes using the clock flags (CK_*).

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>