[WCNCR00170186] misc: Add dump tx power table support

[Description]
Add proc "get_txpwr_tbl" to dump tx power table

Output format:
$spatial stream, $Channel, $bw, $modulation, $regulatory limit,\
$board limit, $target power

$spatial stream = siso, cdd and mimo
$Channel = Center channel
$bw = Legacy, 11g, 11a, HT20, HT40, VHT20, VHT40 and VHT80
$modulation = Modulation
$regulatory limit = Single SKU power limit
$board limit = Summary of EEPROM tx power related values
$target power = MAC CR power value

Change-Id: I124c4e2fde054342cf49d13757bef2bdccd43e32
Feature: misc
Signed-off-by: Soul Huang <soul.huang@mediatek.com>
CR-Id: WCNCR00170186
Reviewed-on: http://gerrit.mediatek.inc:8080/1273132
CheckPatch: Check Patch <srv_checkpatch@mediatek.com>
Reviewed-by: Saker Hsia <saker.hsia@mediatek.com>
Reviewed-by: George Kuo <george.kuo@mediatek.com>
Build: srv_neptune_adm <srv_neptune_adm@mediatek.com>
6 files changed