qcacld-3.0: Get rx chainmask by mac phy capability

Since there is change in FW and doesn't provide rx chaimask 2G on phy0
and rx chainmask 5G on phy1, so add this change to get rx chainmask
2g/5g based on mac phy capability.

Change-Id: I99d5f21c7a8033adc75f3b21e3b486628da3a40f
CRs-Fixed: 2574148
1 file changed