cnss2: Set PCIe link state in proper state during resume

pci_link_state is meant to track if CNSS driver suspends/resumes
PCIe link by calling PCIe bus suspend/resume APIs. Hence set it
in proper state during resume path to reflect accurate state change.

Change-Id: I638357e8a48d52796ac604dcea734056eb03ee54
Signed-off-by: Yue Ma <yuem@codeaurora.org>