Copy remote_toolchain_inputs files when updating JDK

Copy the remote_toolchain_inputs files into the staging directory
when updating teh JDK so they are not lost when the staging directory
replaces the previous JDK.

Test: update.sh 7937646
Change-Id: Idebc436f87e15f0c5b902c63ec24afe7ff6e174b
1 file changed
tree: 940f3dc55e46d4d519c4871987213b7624f8aa35
  1. darwin-x86/
  2. linux-x86/
  3. manifest.xml
  4. update.sh