Check AppOp using noteOp instead os isOpActive

isOpActive is only true if startOp was called, which is not the case for
mediaprojection session.

Bug: 367301791
Test: com.android.server.media.projection.MediaProjectionManagerServiceTest#testCreateProjection_keyguardLocked_AppOpMediaProjection
Flag: android.companion.virtualdevice.flags.media_projection_keyguard_restrictions
Change-Id: I908ea1eabbb4e477f3849a6d05f498bfa7bd2099