cameraserver: Don't read vendor property for SDK FMQ Size

Previously, cameraserver was reading vendor property
ro.vendor.camera.res.fmq.size to set the FMQ size for CaptureResult
metadata transfer (cameraserver -> app client) if it was non-zero.

Now we read a new system property ro.camera.resultFmqSize and use that.
If that isn't set, we use the same size that the camera HAL uses by
querying the FMQ directly with its API.

Bug: 399723640

Test: GCA

Flag: EXEMPT; bugfix

Change-Id: I531b266bc15713716473982cebadaf5bb3ce5565
Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>