arm64: dts: qcom: x1e80100-qcp: fix up PCIe6a pinctrl node

arm64: dts: qcom: x1e80100-qcp: fix up PCIe6a pinctrl node

The PCIe6a pinctrl node appears to have been copied from the sc8280xp
CRD dts, which has the NVMe on pcie2a and uses some funny indentation.

Fix up the node name to match the x1e80100 use and label and use only
tabs for indentation.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20240722095459.27437-3-johan+linaro@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>