Disable VMAP_STACK
After upgrading to 5.15 UML started to support VMAP_STACK making CONFIG_VMAP_STACK to be used, however, after this change random hangs were detected. Disable the use of VMP_STACK until a proper fix is implemented.
http://lists.infradead.org/pipermail/linux-um/2022-January/002024.html
Signed-off-by: Walter Lozano walter.lozano@collabora.com