clk: qcom: gcc: Register QUPv3 RCGs for DFS on SDM845

QUPv3 clocks support DFS and thus register the RCGs which require support
for the same.

Signed-off-by: Taniya Das <tdas@codeaurora.org>
[sboyd@kernel.org: Use new macro, split out init structures so they
don't have to be copied]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>