wl: disable wl shared memory feature
wl: disable wl shared memory feature

When the shared memory feature is enabled, there is a bug in how the
driver handles vfds without an associated pfn. Disable the feature bit
until the bug is fixed.

BUG=b:213532601
TEST=crostini.CopyPaste.wayland_to_x11_buster_stable

Change-Id: Ic5f68e167e8ee8f4c990d0c4d73149e60b3ce908
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3789166
Commit-Queue: David Stevens <2f87ba95ff5d327328bd68c2e86a4d9f2ba99bd0@chromium.org>
Reviewed-by: Keiichi Watanabe <815e4e8f7c92a23424d7c3f51ead622bcedbc720@chromium.org>
Tested-by: David Stevens <2f87ba95ff5d327328bd68c2e86a4d9f2ba99bd0@chromium.org>

google/crosvm,google/crosvm,google/crosvm,google/crosvm