clk: qcom: Add Global Clock Controller driver for QCM2290

Add Global Clock Controller (GCC) driver for QCM2290. This is a porting
of gcc-scuba driver from CAF msm-4.19, with GDSC support added on top.

Because the alpha_pll on the platform has a different register
layout (offsets), its own clk_alpha_pll_regs_offset[] is used in the
driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Link: https://lore.kernel.org/r/20210919023308.24498-3-shawn.guo@linaro.org
Acked-by: Rob Herring <robh@kernel.org>
[sboyd@kernel.org: Drop duplicate includes, clk.h include, module alias]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>