In CreateCoreLicenseResponse(), there seems to be an out of bounds
potential error due to a missing check that the index used for
license_response.parsed_license->key_array is valid. Adding a check
for this here.
Bug: 217677571
Test: fuzz tests
Change-Id: I37f7228f87992ba5284c553d7b07ef97d6a66ab3
(cherry picked from commit eb711ea0ec)