clk: qcom: smd: Add support for MSM8976 rpm clocks

Add rpm smd clocks, PMIC and bus clocks which are required on MSM8976,
MSM8956 (and APQ variants) for clients to vote on.

Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com>
Link: https://lkml.kernel.org/r/20191031112951.35850-2-kholk11@gmail.com


Signed-off-by: Stephen Boyd <sboyd@kernel.org>