shill: add parsing for 64-bit nl80221 STA info TX/RX bytes counters

The 32bit counters rollover very quickly.  Parse the
NL80211_STA_INFO_RX_BYTES64 and NL80211_STA_INFO_TX_BYTES64 properties
which replace them.

BUG=chrome-os-partner:43066
TEST=FEATURES=test emerge-amd64-generic shill

Change-Id: I0ce3db25e70cc9a3e851ed755404d9fae607de12
Reviewed-on: https://chromium-review.googlesource.com/287892
Reviewed-by: Paul Stewart <pstew@chromium.org>
Commit-Queue: Garret Kelly <gdk@chromium.org>
Tested-by: Garret Kelly <gdk@chromium.org>
(cherry picked from commit 428de9be33b2532be3452441007e98f4b003d474)
Reviewed-on: https://chromium-review.googlesource.com/288343
Reviewed-by: Garret Kelly <gdk@chromium.org>
1 file changed