regulator: dt-bindings: qcom,rpmh: Correct PM8550VE supplies

regulator: dt-bindings: qcom,rpmh: Correct PM8550VE supplies

The PM8550VE has two more supplies (s1-8) than the PM8550VS (s1-6),
so move to a correct if:then: clause to accurately reflect that.

Fixes: 902f8c9830c3 ("regulator: dt-bindings: qcom,rpmh: Correct PM8550 family supplies")
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20241112003544.2807368-1-quic_molvera@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>