dt-bindings: clock: Document SM8150 rpmh-clock compatible

Document the SM8150 rpmh-clock compatible for rpmh clock controller
found on SM8150 platforms.

Signed-off-by: Vinod Koul <[e-mail]>
Reviewed-by: Bjorn Andersson <[e-mail]>
Link: https://lkml.kernel.org/r/[e-mail]
Reviewed-by: Rob Herring <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>

Documentation/devicetree/bindings/clock/qcom,rpmh-clk.txt

···
 other hardware subsystems via RSC to control clocks.
 
 Required properties :
-- compatible : shall contain "qcom,sdm845-rpmh-clk"
+- compatible : must be one of:
+	       "qcom,sdm845-rpmh-clk"
+	       "qcom,sm8150-rpmh-clk"
 
 - #clock-cells : must contain 1
 - clocks: a list of phandles and clock-specifier pairs,