qcacmn: Add Agile Spectral frequency to Spectral SAMP message

Add Agile Spectral frequency to Spectral SAMP message and populate the
same. This coexists with the pre-existing operational frequency in
SAMP message for the sake of flexibility.

Change-Id: Iadb8efeaac924df5b0ac9a83f630206b2ef93052
CRs-Fixed: 2545763
4 files changed