dt-bindings: mfd: qcom,tcsr: Add compatible for sa8775p

Document the compatible for sa8775p SoC.

Reviewed-by: Elliot Berman <quic_eberman@quicinc.com>
Signed-off-by: Mukesh Ojha <quic_mojha@quicinc.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20240830133908.2246139-1-quic_mojha@quicinc.com


Signed-off-by: Lee Jones <lee@kernel.org>