clk: ti: dra7: add vpe clkctrl data

Add clkctrl data for VPE.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>