arm64: dts: qcom: sm6125: Add DLL/DDR configuration on SDHCI 1/2

These config values have been extracted from CodeLinaro's most recent
trinket/sm6125 tag:
https://git.codelinaro.org/clo/la/kernel/msm-4.14/-/blob/LA.UM.9.11.r1-05600-NICOBAR.QSSI12.0/arch/arm64/boot/dts/qcom/trinket.dtsi

Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220508100336.127176-3-marijn.suijten@somainline.org