dt-bindings: remoteproc: qcom: q6v5: fix example

Use the node in the examples that is present in msm8974.dtsi, which uses
proper flags for the interrupts and add required 'xo' clock among
others.

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220606132324.1497349-1-luca@z3ntu.xyz