clk: qcom: add driver for SM8150 SoC

clk: qcom: add driver for SM8150 SoC

Add clock, reset and power domain driver for SM8150. Driver code is
based on the similar U-Boot drivers. All constants are taken from the
corresponding Linux driver.

This driver supports clock rate setting only debug UART,
RGMII/Ethernet modules and USB controller.

Co-authored-by: Volodymyr Babchuk <volodymyr_babchuk@epam.com>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Signed-off-by: Julius Lehmann <lehmanju@devpi.de>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>