arm64: dts: qcom: qcm6490-fairphone-fp5: Add PM7325 thermals

Configure the thermals for the QUIET_THERM, CAM_FLASH_THERM, MSM_THERM
and RFC_CAM_THERM thermistors connected to PM7325.

With this PMIC the software communication to the ADC is going through
PMK7325 (= PMK8350).

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Link: https://lore.kernel.org/r/20231013-fp5-thermals-v1-4-f14df01922e6@fairphone.com


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