clk: qcom: Add clock driver for SM8450

This adds Global Clock controller (GCC) driver for SM8450 SoC including
the gcc resets and gdsc.

This patch is based on initial code downstream by Vivek Aknurwar
<viveka@codeaurora.org>

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211207114003.100693-3-vkoul@kernel.org