iwinfo: add device id for Ubiquiti NanoStation Loco M2

id read from unit and txoffset from datasheet

Signed-off-by: Sven Roederer <devel-sven@geroedel.de>

hardware.txt

@@ -51,6 +51,7 @@
 0x168c 0x0029 0x168c 0xa095    0      0  "Atheros"  "AR9223"
 0x168c 0x002a 0x168c 0xa093    0      0  "Atheros"  "AR9280"
 0x168c 0x002b 0x168c 0xa091    0      0  "Atheros"  "AR9285"
+0x168c 0x002e 0x0777 0xe0a2    8      0  "Ubiquiti" "NanoStation Loco M2 (XM)"
 0x168c 0x0033 0x168c 0xa120    0      0  "Atheros"  "AR9580"
 0x168c 0x0033 0x168c 0xa136    0      0  "Atheros"  "AR9580"
 0x168c 0x003c 0x0000 0x0000    0      0  "Qualcomm Atheros" "QCA9880"