clk: ti: dra7: add missing clkctrl register for SHA2 instance

DRA7 SoC has two SHA instances. Add the clkctrl entry for the second
one.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Link: https://lore.kernel.org/r/20200907082600.454-4-t-kristo@ti.com


Signed-off-by: Stephen Boyd <sboyd@kernel.org>