Camera: Add new metadata tag for multiResolution capability

This avoids the ambiguity of deriving multi-resolution stream
configuration map when a physical camera backs more than one logical
camera.

For example, if a logical camera L0 is backed by physical camera 3 (P3) and
physical camera 4 (P4), where both P3 and P4 advertise physical
multi-resolution stream configuration map. However, P4 may be backing a
different logical camera L2 with P5, which doesn't advertise physical
multi-resolution stream configuration map. In that case, it's not clear
whether L2 should support multi-resolution streams.

Adding a dedicated tag to indicate multi-resolution stream support
solves this ambiguity.

Test: Camera VTS and CTS
Bug: 184663916
Change-Id: If5998f8fca67f64c4403fc22e345e9e669a2cc38
4 files changed