net: cnss2: restore pci config space before enable device

When loading wlan driver, driver will check if chip is initialized
by reading pci io FW_IND_INITIALIZED status. While timeout occurred
when wait for above status randomly in multi load-unload process.

Restore pci config space before enable device during resume pci link.

Change-Id: Ib10f739b2321c7cb0e71ad40db571075a56ae48a
Signed-off-by: Kai Liu <kaliu@codeaurora.org>