dt-bindings: soc: qcom: qcom,saw2: add msm8226 l2 compatible

Add the compatible for the SAW2 for L2 cache found on MSM8226.

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240210-msm8226-cpu-v2-1-5d9cb4c35204@z3ntu.xyz


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