am f02dfc26: Use real rssi value for rssi-approx command (http://b/2213699)

Merge commit 'f02dfc26f9c2a492e066582e7c739e11b0e88ff5' into eclair-plus-aosp

* commit 'f02dfc26f9c2a492e066582e7c739e11b0e88ff5':
  Use real rssi value for rssi-approx command (http://b/2213699)