clk: qcom: Add qspi (Quad SPI) clock defines for sdm845 to header

These clocks will need to be defined in the clock driver and
referenced in device tree files.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>