arm64: dts: qcom: sc7280: Add reset entries for SDCC controllers

Add gcc hardware reset entries for eMMC and SD card.

Signed-off-by: Shaik Sajida Bhanu <quic_c_sbhanu@quicinc.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1649759528-15125-3-git-send-email-quic_c_sbhanu@quicinc.com