dt-bindings: mfd: qcom,tcsr: Add the compatible for IPQ8074

Document the qcom,tcsr-ipq8074 compatible.

Signed-off-by: Vignesh Viswanathan <quic_viswanat@quicinc.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230526110653.27777-2-quic_viswanat@quicinc.com