Revert "Load default KeyFactory instead of BC's implementation"

Revert submission 1299358-remove_bc_algos

Reason for revert: broke higkey-userdebug
Bug: 155693016
Reverted Changes:
I98adb4d2f:Load default KeyFactory instead of BC's implementa...
I5256fe1c7:Remove deprecated BouncyCastle algorithms
I0437de742:Remove deprecated BouncyCastle algorithms
Ie9e0cfa02:Remove deprecated BouncyCastle algorithms

Change-Id: I477e84bd3009bfdcbc7207e744f590295dbda64b
6 files changed