pm3 serial detection on OS X more robust

Official firmwares < 2018.02 had a different USB Model string (PM3<>proxmark3).
Better to detect based on the vendor string (proxmark.org) which is more stable,
to ease reflashing devices with old firmwares to the RDV4 firmware.

pm3

@@ -29,7 +29,9 @@ function get_pm3_list_Linux {
 
 function get_pm3_list_macOS {
     PM3LIST=()
-    for DEV in $(ioreg -r -n proxmark3 -l|awk -F '"' '/IODialinDevice/{print $4}'); do
+    for DEV in $(ioreg -r -c "IOUSBHostDevice" -l|awk -F '"' '
+        $2=="USB Vendor Name"{b=($4=="proxmark.org")}
+        b==1 && $2=="IODialinDevice"{print $4}'); do
         PM3LIST+=("$DEV")
     done
 }