dt-bindings: soc: qcom: qcom,pmic-glink: document X1E80100 compatible

Document the X1E80100 compatible used to describe the pmic glink
on this platform.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240129-x1e80100-pmic-glink-v1-1-e45cf194b964@linaro.org


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