Split vr_hwc manifest entry.

It is only installed on some devices.

Bug: 109913118
Bug: 111963599
Test: vts_treble_vintf_test on a new phone
Test: lshal on a new phone
Test: manually verify vintf manifest using 'vintf' binary
Test: VTS does not run the composer test for the vr instance
Change-Id: I0865fc9be40e318f77a95d970db0548aad5063ff
Merged-In: I0865fc9be40e318f77a95d970db0548aad5063ff
(cherry picked from commit 2cc593da608732f4b663f0b0c07a9b013607e4e2)
3 files changed