Select correct oat/odex when pinning the Camera APK

Make sure that if a primary ABI is set for an application that this
ABI is properly taken into account when comparing the VM runtime
bitness.

Without this change a 32-bit camera running application running on a
device where the primary ABI is 64-bit the code would assume create
a path to a non-existant 64-bit binary.

Test: Enable debug prints in pinning service and check if all parts
  of camera is pinned.
Bug: 32633857
Change-Id: Iabf7ab890628fa92b0afd3e315a2d74073afde41