clk: qcom: gcc: ipq5332: Use floor ops for SDCC clocks

SDCC clocks must be rounded down to avoid overclocking the controller.

Fixes: 3d89d529 ("clk: qcom: add Global Clock controller (GCC) driver for IPQ5332 SoC")
Signed-off-by: Kathiravan T <quic_kathirav@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230508163145.9678-1-quic_kathirav@quicinc.com