arm64: dts: qcom: sc7280: Add nodes to support WoW on WCN6750

Add DT nodes to support WoW (Wake on Wireless) feature on WCN6750
WiFi hardware on SC7280 SoC.

Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221017125346.3691-3-quic_mpubbise@quicinc.com