arm64: dts: qcom: sc8280xp-x13s: fix dmic sample rate

arm64: dts: qcom: sc8280xp-x13s: fix dmic sample rate

The version of dmic that is on X13s panel supports clock frequency
of range 1 Mhz to 4.8 MHz for normal operation.

So correct the existing node to reflect this.

Fixes: 8c1ea87e80b4 ("arm64: dts: qcom: sc8280xp-x13s: Add soundcard support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230302115741.7726-4-srinivas.kandagatla@linaro.org