This patch adds SHA256 key management definition for wifi service to manipulate them. Test: Build with dependent CLs Bug: 68787540 Signed-off-by: Daichi Ueura <daichi.ueura@sony.com> Change-Id: I35326c6803de48814564a619d42e217a06aaf06f (Cherry-picked from commit dc3f6ee703d9a0e7f6d735c6c0e22a6bc45c726c)