Don't put layout round and direction in override configuration

Only the size and aspect ratio bits of screen layout should be set
in override configuration for size compatibility mode.

Bug: 112288258
Test: atest ActivityRecordTests#testSizeCompatMode_FixedScreenLayoutSizeBits
Test: manual - Assume a size compat mode activity without declaring to
      handle layout direction. When switching "Force RTL layout direction"
      from quick settings, the activity should be relaunched.

Change-Id: I2239257ac79712fcafc0bb5ae046f392cf0a3b09