arm64: dts: qcom: msm8994: correct sleep clock frequency

The MSM8994 platform uses PM8994/6 to provide sleep clock. According to the
documentation, that clock has 32.7645 kHz frequency. Correct the sleep
clock definition.

Fixes: feeaf56a ("arm64: dts: msm8994 SoC and Huawei Angler (Nexus 6P) support")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20241224-fix-board-clocks-v3-3-e9b08fbeadd3@linaro.org


Signed-off-by: Bjorn Andersson <andersson@kernel.org>