arm64: dts: qcom: qcs404: Enable CQE support for eMMC

Enabling CQE support for eMMC by supplying the correct reg name
and flag which indicates CQE support.

Also remove the redundant _mem suffix for reg names.

Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
Link: https://lore.kernel.org/r/1583946863-24308-1-git-send-email-vbadigan@codeaurora.org


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