hardware: add NanoBridge M5 0xe235 in testing

XM.v5.5# cat /etc/board.info
board.sysid=0xe235
board.cpurevision=0x000000c2
board.name=NanoBridge? M5
board.shortname=NB5
board.subtype=
board.netmodes=7;
board.hwaddr=00156D1EED1F
board.reboot=30
board.upgrade=150
board.phycount=1
board.phy.1.maxmtu=1524
board.phy.2.maxmtu=1524
radio.1.name=
radio.1.shortname=
radio.1.bus=pci
radio.1.subsystemid=0xe235
radio.1.subvendorid=0x0777
radio.1.txpower.max=23
radio.1.txpower.offset=1
radio.1.antennas=3
radio.1.def_antenna=4
radio.1.antenna.1.id=4
radio.1.antenna.1.name=Not specified
radio.1.antenna.1.gain=0
radio.1.antenna.2.id=1
radio.1.antenna.2.name=300
radio.1.antenna.2.gain=22
radio.1.antenna.3.id=2
radio.1.antenna.3.name=400
radio.1.antenna.3.gain=25

fixes AREDN->ticket:161

Change-Id: I050f39646000e4e6ce4342e7140046ba77396d38

files/www/cgi-bin/perlfunc.pm

@@ -1148,6 +1148,15 @@ sub hardware_info
             'usechains'       => 1,
             'rfband'          => '2400',
          },
+        '0xe235' => {
+            'name'            => 'NanoBridge M5',
+            'comment'         => 'NanoBridge M5 in testing',
+            'supported'       => '1',
+            'maxpower'        => '22',
+            'pwroffset'       => '1',
+            'usechains'       => 1,
+            'rfband'          => '2400',
+         },
         '0xe239' => {
             'name'            => 'NanoBridge M9',
             'comment'         => 'NanoBridge M9',