WORKAROUND: Revert vbmeta changes in trout fstab

Cuttlefish has recently changed its fstab layout to support
new VBMeta flags (see commits af8ad6218e554f00db8e109775a25815656d340c
and 7915595d24dac7c65cd5db2ea6e17d0c4ba1aa1c)

This does not work under COQOS, and prevents Android boot from
completing

Work around the issue - pending vendor fixup - by reverting
trout to an older fstab that can boot successfully

This CL relies on https://floral.opensynergy.com/E0808/proj-e0808/prj-sa8155-hwvirt-linux-android/-/merge_requests/2/diffs
to actually have any effect

Bug: 157778185
Test: flash and boot
Change-Id: I82d7ee69267170d617e9e2c08653a0be984c98e1