dt-bindings: usb: qcom,dwc3: Add msm8953 compatible

Document the compatible string for the DWC3 controller in msm8953.

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Acked-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220220201909.445468-4-luca@z3ntu.xyz


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>