cnss: Add new case in cnss runtime PM request feature

The cnss platform driver provides wrapper API to
use the kernel runtime PM APIs in wlan host driver
for runtime power management operation.

Add flag for pm_runtime_get_noresume() API.

CRs-Fixed: 1068920
Change-Id: I36d278bf1837b2a18f74ff52b9be9b7e5a165857
Signed-off-by: Sarada Prasanna Garnayak <sgarna@codeaurora.org>