Fixed issue in linux maple_upload.sh caused by paths with spaces in them

Author: rogerclarkmelbourne

tools/linux/maple_upload

@@ -8,7 +8,7 @@ if [ $# -lt 4 ]; then
     echo "Usage: $0 $# <dummy_port> <altID> <usbID> <binfile>" >&2
     exit 1
 fi
-dummy_port=$1; altID=$2; usbID=$3; binfile=$4; dummy_port_fullpath="/dev/$1"
+dummy_port="$1"; altID="$2"; usbID="$3"; binfile="$4"; dummy_port_fullpath="/dev/$1"
 if [ $# -eq 5 ]; then
     dfuse_addr="--dfuse-address $5"
 else