qcacmn: Allow scan/connection if RF test mode/Safe mode enabled

Currently if AP and STA have different ctry codes, STA should
operate in VLP mode. And if STA ctry code is US, then scan and
connection are not allowed as US VLP is not supported yet.
However, if RF test mode or Wi-Fi Safe Mode is enabled, allow
scan and connection on this AP and STA can operate in LPI mode.

Change-Id: I513657b8e274ef07eb9e9b5fc265722cb01525de
CRs-Fixed: 3079537