cnss2: Avoid to reject suspend pci for non DRV connected platform

For no DRV connected platform, it will reject to suspend pci since
DISABLE_DRV bit isn't set. So check both flags firstly before suspend
pci.

Change-Id: Ifc3de23def6537165f69dd6ca07da9f57f136607
Signed-off-by: Wu Gao <wugao@codeaurora.org>