Add dummy implementation of set_rate for SCLK_GPU and SCLK_WIFI_PMU to
allow use of dts/upstream assigned-clocks in cru and pmucru nodes.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>