Reduce 5G WLAN TX power for selected channels and datarates on GFRG210/200

This patch provides the mechanism to patch the QCA8990 transmit power rates.
If it detects a mis-calibrated system, it will write a calibration patch out
to /tmp, which will be read when the driver is reloaded.

See b/30893979 for details.

Change-Id: If6f3065d6f0608d90c51b11f3e4150ff0efdc7d3
2 files changed