Move Spammy SST.getAllCellInfo Logs to Verbose

The relative frequency of the getAllCellInfo() logs and the
large size of these log lines is contributing substantively
to the log eliding of the RADIO_LOG buffer. Because the RILJ
call contains all the same info these logs add little value.

Bug: 29368040
Change-Id: Ia3ebf3d74986f8f12ac2adbd2dfd7283bb8162b5