extract_utils: Fix makefile generation issues

* Fix makefile generation for packages that have set
  a different target destination

* Thanks to rashed and javelinanddart for their help
  in debugging and solving this issue.

Change-Id: I1f5a1abd6929e4a7e0ccd6370d3a3dd986f94fed

build/tools/extract_utils.sh

@@ -656,6 +656,7 @@ function parse_file_list() {
 
         # if line starts with a dash, it needs to be packaged
         if [[ "$SPEC" =~ ^- ]]; then
+            SPEC=$(echo "${SPEC}" | sed 's/[^"]*://')
             PRODUCT_PACKAGES_LIST+=("${SPEC#-}")
             PRODUCT_PACKAGES_HASHES+=("$HASH")
         else