arm64: dts: qcom: qcm6490-fairphone-fp5: Add front camera support

arm64: dts: qcom: qcm6490-fairphone-fp5: Add front camera support

Add and configure the necessary nodes to enable the front camera
(Samsung S5KJN1), connected to CSIPHY 3.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: David Heidelberg <david@ixit.cz>
Link: https://lore.kernel.org/r/20260319-fp5-s5kjn1-v3-2-9cf4b8c09567@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>