clk: ti: clk-sci: Notify AVS driver based upon clock rate

AVS driver needs to be notified before or after clock change,
depending upon new rate is greater or less than current clock rate.

Fixes: 1e0aa873bc7cd ("clk: clk-ti-sci: Notify AVS driver upon setting clock rate")

Cc: Keerthy <j-keerthy@ti.com>
Signed-off-by: Udit Kumar <u-kumar1@ti.com>