arm64: dts: qcom: msm8998: Fix 'out-ports' is a required property

[ Upstream commit ae5ee3562a2519214b12228545e88a203dd68bbd ]

out-ports is a required property for coresight ETM. Add out-ports for
ETM nodes to fix the warning.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
Link: https://lore.kernel.org/r/20231210072633.4243-4-quic_jinlmao@quicinc.com


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