[roll] Roll fuchsia [goldfish-control] Use sysmem protocol provided by the fragment node.

The goldfish-control composite node has a "sysmem" node that provides
the fuchsia.hardware.sysmem/Service service.

This change makes the goldfish-control driver connect to the Sysmem
service member directly over the service provided by the fragment node,
rather than using the goldfish pipe RegisterSysmemHeap method.

This change also fixes a flake in the goldfish-control-device-test;
test must wait until all heaps are connected before starting handling
the register events.

Test: goldfish-control-device-test

On FEMU (ffx emu start):
Test: no-op expected.
Test: "display-tool squares" works (uses the host-visible memory heap)
Test: "vkcube-on-fb" works (uses the device-local memory heap).
Original-Bug: 334161084

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1028899
Original-Revision: 13c6f89130fcca4c74a461d5400c207b1ed9cb4d
GitOrigin-RevId: 7b16d59a528f06639a0247673d516e6bbcf99fc4
Change-Id: Iaab2810d14b223dfd5e3677a4a5fdcdd38be3622