FIX: [ti-calibrator-wl18xx] wgod-ng: get -p parameter for output power

working

BugzId: 82736
(cherry picked from commit 999dce5a07)

recipes-testing/ti-calibrator-wl18xx/ti-calibrator-wl18xx/wgod-ng

@@ -162,7 +162,7 @@ if [ $# -le 0 ]; then
     usage
 fi
 
-while getopts a:b:c:d:g:hi:r:s:t: OPT; do
+while getopts a:b:c:d:g:hi:r:p:s:t: OPT; do
     case $OPT in
         a) W_ANTENNA=$OPTARG;;
         b) W_BANDWIDTH=$OPTARG;;