K 10 svn:author V 6 adrian K 8 svn:date V 27 2015-03-29T21:50:21.077148Z K 7 svn:log V 422 Move the HAL channel survey support out to be in the top-level HAL, rathe than private in each HAL module. Whilst here, modify ath_hal_private to always have the per-channel noisefloor stats, rather than conditionally. This just makes life easier in general (no strange ABI differences between different HAL compile options.) Add a couple of methods (clear/reset, add) rather than using hand-rolled versions of things. END