qcacld-3.0: Avoid enabling power save in FTM
Currently, the wlan driver enables low power mode in firmware, even when
the driver is loaded in Factory Test Mode (FTM). Going into low power
mode while in FTM can cause firmware to misbehave, and doesn't make much
sense anyway. Avoid power save when the driver is in FTM.
Change-Id: Id979f70db09fe42b9a1b9951542283e8f565cd85
CRs-Fixed: 2408289