ANDROID: GKI: Enable CONFIG_MEMFD_ASHMEM_SHIM

Enable memfd-ashmem compatibility support.

Bug: 111903542
Change-Id: Ia4685272b2f64db737697a3e3c1640d110060111
[isaacmanjarres: resolved trivial merge conflicts in config files.]
Signed-off-by: Isaac J. Manjarres <isaacmanjarres@google.com>