qcacld-3.0: Upgrade UDP qos based on user setting

Provide the support to upgrade the priority of
UDP packets based on user setting. The user will
set a particular QoS and for any UDP packets, which
has priority lesser than the current setting, the
QoS will be upgrade to the user set value.

The default value for this setting will be Best Effort.

Change-Id: I64207797e9c000d1d6fb757e22b02ee4f96a36f1
CRs-Fixed: 2724041