Add method in wpa_supplicant to call listAliases.

Bug: 205764502
Test: Manual test - store several aliases
      in the certificate store. Call the new
      method to verify that the expected aliases
      are retrieved when the corresponding
      prefix is passed in.
Change-Id: I3ae57f5cce9a4fecb8145abb0ba7bf6542b1f03f
2 files changed