dt-bindings: clock: qcom: Document the Nord SoC TCSR Clock Controller

dt-bindings: clock: qcom: Document the Nord SoC TCSR Clock Controller

The Nord SoC TCSR block provides CLKREF clocks for DP, PCIe, UFS, SGMII
and USB.

Signed-off-by: Taniya Das <taniya.das@oss.qualcomm.com>
[Shawn: Use compatible qcom,nord-tcsrcc rather than qcom,nord-tcsr]
Signed-off-by: Shawn Guo <shengchao.guo@oss.qualcomm.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260403-nord-clks-v1-1-018af14979fd@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>