arm64: dts: qcom: x1e80100: add TRNG node

arm64: dts: qcom: x1e80100: add TRNG node

The x1e80100 SoC has a True Random Number Generator, add the node with
the correct compatible set.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Tested-by: Wenjia Zhang <wenjia.zhang@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Harshal Dev <harshal.dev@oss.qualcomm.com>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251223-trng_dt_binding_x1e80100-v4-2-5bfe781f9c7b@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>