dt-bindings: remoteproc: qcom,msm8916-mss-pil: Add MSM8926

Compared to MSM8226 the LTE-capable MSM8926 requires mss-supply and
doesn't require qcom,ext-bhs-reg.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Luca Weiss <luca@lucaweiss.eu>
Link: https://lore.kernel.org/r/20250217-msm8226-modem-v5-3-2bc74b80e0ae@lucaweiss.eu


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