
Add pld_get_mhi_state API to get current MHI state and pld_is_pci_ep_awake to indicate that PCI EP is out of low power state. Also enable pld_prevent_l1 and pld_allow_l1 API for WCN6750 to manage low power state of PCI EP from Host. Change-Id: Ic574bf7d7886b8e59b98e65806b387eef3a54e94